{
    "facets": [ 
        {
            "field": "subject",
            "terms": { 
                "virginia--history--civil war, 1861-1865": 156,
                "petersburg (va.)--history--siege, 1864-1865": 87,
                "south carolina--history--civil war, 1861-1865": 43,
                "north carolina--history--civil war, 1861-1865": 37,
                "united states--history--civil war, 1861-1865": 36,
                "pacific railroads--history--19th century": 31,
                "maryland--history--civil war, 1861-1865": 26,
                "charleston (s.c.)--history--siege, 1863": 20,
                "fortification--virginia": 20,
                "great fire, chicago, ill., 1871": 19,
                "kentucky--history--civil war, 1861-1865": 16,
                "missouri--history--civil war, 1861-1865": 14,
                "fort fisher (n.c. : fort)--siege, 1864-1865": 14,
                "burnside's expedition to north carolina, 1862": 12,
                "tennessee--history--civil war, 1861-1865": 12,
                "military camps--virginia": 11,
                "warships--united states": 10,
                "peeble's farm, battle of, va., 1864": 10,
                "ships--history--19th century": 10,
                "louisiana--history--civil war, 1861-1865": 10,
                "transatlantic cables--history--19th century": 10,
                "united states--army--military life": 9,
                "chesapeake bay region (md. and va.)": 9,
                "charleston (s.c.)--history--civil war, 1861-1865": 8,
                "fortification--history--19th century": 8,
                "georgia--history--civil war, 1861-1865": 8,
                "chinese--california--san francisco--history--19th century": 8,
                "baltimore (md.)--history--civil war, 1861-1865": 8,
                "duck shooting": 7,
                "virginia--history--civil war, 1861-1865--african americans": 7,
                "indians of north america--wars--1866-1895": 7,
                "wilmington (n.c.)--history--19th century": 6,
                "ordnance--history--19th century": 6,
                "bombardment--history--19th century": 6,
                "united states--army--new york infantry regiment, 9th (1861-1863)--military life": 6,
                "sullivans island (s.c.)--history--19th century": 6,
                "military camps--north carolina": 6,
                "morris island (s.c.)--history--19th century": 6,
                "west virginia--history--civil war, 1861-1865": 6,
                "fortification--north carolina": 6,
                "illinois--history--civil war, 1861-1865": 6,
                "james river (va.)--history--19th century": 6,
                "mississippi--history--civil war, 1861-1865": 6,
                "roanoke island (n.c.)--history--capture, 1862": 6,
                "cookery, military": 5,
                "frémont, john charles,--1813-1890": 5,
                "african americans": 5,
                "indians of north america--wars--montana": 5,
                "dakota indians--wars, 1876": 5,
                "united states--army--supplies and stores": 5,
                "west virginia campaign, 1861": 5,
                "ohio--history--civil war, 1861-1865": 5,
                "united states--history--civil war, 1861-1865--transportation": 4,
                "fortification--south carolina": 4,
                "military camps--united states": 4,
                "spanish-american war, 1898": 4,
                "shakers": 4,
                "united states--history--civil war, 1861-1865--destruction and pillage": 4,
                "fort bartow (n.c. : fort)": 4,
                "vicksburg (miss.)--history--siege, 1863": 4,
                "warships": 4,
                "military camps--missouri": 4,
                "washington (d.c.)--history--civil war, 1861-1865": 4,
                "fortification--south carolina--charleston": 4,
                "fort monroe (va.)": 4,
                "shiloh, battle of, tenn., 1862": 4,
                "virginia--history--civil war, 1861-1865--prisoners and prisons": 4,
                "armored vessels--united states--history--19th century": 4,
                "wilderness, battle of the, va., 1864": 4,
                "south carolina--history--civil war, 1861-1865--naval operations": 4,
                "pennsylvania--history--civil war, 1861-1865": 4,
                "confederate states of america.--army": 4,
                "james river (va.)": 4,
                "north carolina--history--civil war, 1861-1865--prisoners and prisons": 3,
                "soldiers' national cemetery (gettysburg, pa.)": 3,
                "mcclernand, john a.--(john alexander),--1812-1900": 3,
                "military camps--virginia--19th century": 3,
                "sheridan, philip henry,--1831-1888": 3,
                "grant, ulysses s.--(ulysses simpson),--1822-1885": 3,
                "james island (s.c.)--history--19th century": 3,
                "atlanta (ga.)--history--19th century": 3,
                "fortification--virginia--history--19th century": 3,
                "united states--social life and customs--1865-1918": 3,
                "boydton plank road, battle of, va., 1864": 3,
                "united states--army--cavalry--history--19th century": 3,
                "fortification--virginia--yorktown": 3,
                "virginia--history--civil war, 1861-1865--artillery operations": 3,
                "military camps--virginia--history--19th century": 3,
                "antietam (md.)": 3,
                "oneida community": 3,
                "landing operations": 3,
                "battlefields--history--19th century": 3,
                "florida--history--civil war, 1861-1865": 3,
                "fort macon (n.c.)--siege, 1862": 3,
                "spotsylvania court house, battle of, va., 1864": 3,
                "united states--army--ordnance and ordnance stores": 3,
                "potomac river": 3,
                "cape fear river (n.c.)--history--19th century": 3,
                "national cemeteries--pennsylvania--gettysburg": 3,
                "cemeteries--pennsylvania": 3,
                "united states--navy--history--civil war, 1861-1865": 3,
                "virginia--history--civil war, 1861-1865--casualties": 3,
                "charleston harbor (s.c.)--history--19th century": 3,
                "guard duty": 3,
                "shenandoah valley campaign, 1864 (august-november)": 3,
                "united states--history--civil war, 1861-1865--food supply": 3,
                "pontoon bridges": 2,
                "fisher's hill, battle of, va., 1864": 2,
                "sherman, william t.--(william tecumseh),--1820-1891": 2,
                "railroad trains--virginia": 2,
                "gunboats": 2,
                "african americans--history--1863-1877": 2,
                "appomattox river (va.)": 2,
                "warships--confederate states of america": 2,
                "baton rouge (la.)": 2,
                "united states--navy": 2,
                "hilton head island (s.c.)--history--19th century": 2,
                "sheridan, philip henry,--1831-1888--homes and haunts": 2,
                "military headquarters": 2,
                "rowlett's station, battle of, ky., 1861": 2,
                "military deserters": 2,
                "confederate states of america.--army--cavalry": 2,
                "amusements--virginia--19th century": 2,
                "fort sumter (charleston, s.c.)": 2,
                "lovie, henri": 2,
                "fortification--south carolina--sullivans island": 2,
                "united states--army--indiana infantry regiment, 32nd (1861-1865)": 2,
                "military camps--virginia--yorktown": 2,
                "mississippi--history--civil war, 1861-1865--evacuation of civilians": 2,
                "african americans--social life and customs--19th century": 2,
                "demolition, military--history--19th century": 2,
                "executions and executioners": 2,
                "funkstown (md.)--history--19th century": 2,
                "bayou bourbeux, battle of, la., 1863": 2,
                "louisiana--history--civil war, 1861-1865--campaigns": 2,
                "col. satterly (schooner)": 2,
                "gunboats--history--19th century": 2,
                "united states--history--civil war, 1861-1865--african americans": 2,
                "dead": 2,
                "military hospitals--virginia": 2,
                "women--virginia--richmond--history--19th century": 2,
                "fort henry, battle of, tenn., 1862": 2,
                "african americans--virginia--richmond--history--19th century": 2,
                "richmond (va.)--history--siege, 1864-1865--pictorial works.": 2,
                "united states--history--civil war, 1861-1865--naval operations": 2,
                "williamsburg, battle of, williamsburg, va., 1862": 2,
                "soldiers": 2,
                "social problems": 2,
                "dutch gap (va.)": 2,
                "fortification--united states": 2,
                "new york--history--civil war, 1861-1865": 2,
                "united states--army--officers": 2,
                "military ceremonies, honors, and salutes": 2,
                "crabbing.": 2,
                "united states--army--pennsylvania light artillery regiment, 1st": 2,
                "warren, gouverneur kemble,--1830-1882": 2,
                "dranesville (va.)--history--19th century": 2,
                "mason, r. b.--(roswell b.),--1805-1892": 2,
                "fortification--kentucky--columbus": 2,
                "fortification--virginia--petersburg": 2,
                "prisoners of war--confederate states of america": 2,
                "rich mountain, battle of, w. va., 1861": 2,
                "mississippi river valley--history--civil war, 1861-1865": 2,
                "presidents--united states--election--1864": 2,
                "monocacy river (md.)": 2,
                "military camps--ohio": 2,
                "pullman, george mortimer,--1831-1897": 2,
                "circus": 2,
                "fortification--north carolina--cape fear": 2,
                "savannah river (ga. and s.c.)": 2,
                "rosecrans, william s.--(william starke),--1819-1898": 2,
                "railroads--virginia": 2,
                "berryville (va.)--history--19th century": 2,
                "united states--history--civil war, 1861-1865--scouts and scouting": 2,
                "canals--virginia--james river--history--19th century": 2,
                "united states--army--massachusetts infantry regiment, 22nd (1861-1864)--military life": 2,
                "united states--army of the potomac--military life": 2,
                "united states.--army--supplies and stores": 2,
                "thanksgiving cookery": 2,
                "united states--army--new york cavalry regiment, 1st (1861-1865)": 2,
                "chowan river (n.c.)--history--19th century": 2,
                "generals--united states": 2,
                "united states.--navy--history--civil war, 1861-1865": 2,
                "united states--army--new york infantry regiment, 11th (1861-1862)": 2,
                "fort wagner (s.c.)--history--19th century": 2,
                "military camps--history--19th century": 2,
                "virginia--history--civil war, 1861-1865--hospitals": 2,
                "fortification--virginia--arlington county": 1,
                "hurricanes--new york (state)--history--19th century": 1,
                "tennessee--history--civil war, 1861-1865--equipment and supplies": 1,
                "schooners--history--19th century": 1,
                "fort donelson, battle of, tenn., 1862": 1,
                "elizabeth river (va.)": 1,
                "political campaigns--virginia--history--19th century": 1,
                "secessionville, battle of, secessionville, s.c., 1862": 1,
                "generals--dwellings--united states": 1,
                "virginia--history--civil war, 1861-1865--communications": 1,
                "pamunkey river (va.)": 1,
                "confederate states of america.--army.--virginia cavalry regiment, 1st": 1,
                "dwellings--quãˆbec (province)": 1,
                "jamestown (va.)--history--19th century": 1,
                "fortification--virginia--jamestown": 1,
                "confederate states of america.--army--virginia cavalry regiment, 3rd": 1,
                "united states--army--cavalry, 6th": 1,
                "slaterville (va.)": 1,
                "soldiers--wounds and injuries--united states": 1,
                "fessenden, james d.--(james deering),--1833-1882--headquarters--virginia": 1,
                "united states.--army--forage": 1,
                "fort magruder (va.)": 1,
                "river boats--kentucky": 1,
                "united states--army--indiana infantry regiment, 44th (1861-1865)": 1,
                "military camps--new york--history--19th century": 1,
                "warrenton (va.)": 1,
                "united states--army--illinois infantry regiment, 41st (1861-1864)": 1,
                "fortification--florida--history--19th century": 1,
                "caissons": 1,
                "sewells point (va.)": 1,
                "sewell's point (va.)": 1,
                "belmont, battle of, belmont, mo., 1861": 1,
                "united states--army.--iowa infantry regiment, 7th (1861-1865)": 1,
                "ellsworth, e. e.--(elmer ephraim),--1837-1861--assassination": 1,
                "united states--army--illinois infantry regiment, 31st (1861-1865)": 1,
                "wentz, augustus": 1,
                "buckhannon (w. va.)": 1,
                "united states--army--indiana infantry regiment, 9th (1861-1865)": 1,
                "fortification--maryland--baltimore": 1,
                "viriginia--history--civil war, 1861-1865": 1,
                "fourth of july celebrations--virginia": 1,
                "fourth of july celebrations--illinois": 1,
                "springfield (mo.)--history": 1,
                "united states--army--history--civil war, 1861-1865": 1,
                "military camps--illinois": 1,
                "wagon trains--west virginia": 1,
                "fortification--kentucky--paducah": 1,
                "camp smith (ill.)": 1,
                "pikeville (ky.)": 1,
                "ordnance--virginia--fort monroe": 1,
                "hand-to-hand fighting--history--19th century": 1,
                "confederate states of america.--army.--texas cavalry regiment, 8th": 1,
                "newport news (va.)": 1,
                "united states--army--massachusetts infantry regiment, 4th (1861-1863)": 1,
                "military camps--virginia--newport news": 1,
                "pontoon bridges--illinois": 1,
                "slocum, henry warner,--1826-1894--homes and haunts": 1,
                "confederate states of america.--army.--texas cavalry": 1,
                "united states.--army of the ohio": 1,
                "ohio river": 1,
                "fortification--ohio": 1,
                "buell, don carlos,--1818-1898": 1,
                "united states--army--infantry": 1,
                "united states--army--pennsylvania light artillery regiment, 1st--battery b (1861-1865)": 1,
                "military camps--pennsylvania": 1,
                "willich, august": 1,
                "millen (ga.)--history--19th century": 1,
                "georgia--history--civil war, 1861-1865--prisoners and prisons": 1,
                "fort mchenry (baltimore, md.)": 1,
                "fort pickens (fla.)": 1,
                "asboth, alexander s.--(alexander sandor),--1811-1868": 1,
                "horse-drawn vehicles": 1,
                "logging--virginia--history--19th century": 1,
                "canals--virginia--design and construction": 1,
                "projectiles": 1,
                "soldiers--alcohol": 1,
                "military deserters--virginia": 1,
                "firing squads (execution)--virginia": 1,
                "united states--army--guard duty": 1,
                "brethren (church of the brethren)--virginia": 1,
                "united states--history--civil war, 1861-1865--conscientious objectors": 1,
                "peebles farm, battle of, va., 1864": 1,
                "soldiers--virginia--19th century": 1,
                "elections--united states--history--19th century": 1,
                "building, bombproof--virginia": 1,
                "fort duchane (va.)": 1,
                "atlanta campaign, 1864": 1,
                "military roads--design and construction": 1,
                "bowling--virginia--19th century": 1,
                "grave digging--virginia--19th century": 1,
                "burial--virginia--19th century": 1,
                "sutlers": 1,
                "united states--army--cavalry--history--civil war, 1861-1865": 1,
                "military hospitals--united states--19th century": 1,
                "war--relief of sick and wounded": 1,
                "canal-boats--virginia": 1,
                "virginia--history--civil war, 1861-1865--civilian relief": 1,
                "transportation, military--virginia": 1,
                "military railroads--virginia": 1,
                "united states--army--ambulances": 1,
                "cedar creek, battle of, va., 1864": 1,
                "military camps--maryland--frederick": 1,
                "garfield, james a.--(james abram),--1831-1881--assassination": 1,
                "long branch (n.j.)": 1,
                "butler, benjamin f.--(benjamin franklin),--1818-1893": 1,
                "admirals": 1,
                "reconstruction (u.s. history, 1865-1877)": 1,
                "naval ceremonies, honors, and salutes--united states": 1,
                "greeley, horace,--1811-1872": 1,
                "boxers (sports)": 1,
                "military camps--connecticut--new haven": 1,
                "connecticut--history--civil war, 1861-1865": 1,
                "railroad stations--virginia--petersburg": 1,
                "united states--army--firearms": 1,
                "telegraph lines--virginia--petersburg": 1,
                "railroad tracks--virginia--petersburg": 1,
                "battles--virginia": 1,
                "confederate states of america.--army--uniforms": 1,
                "north carolina--history--civil war, 1861-1865--scouts and scouting": 1,
                "warehouses--north carolina--wilmington": 1,
                "signal lights": 1,
                "united states--army--drills and tactics": 1,
                "cape fear (n.c.)--history--19th century": 1,
                "fort fisher (n.c. : fort)--capture, 1865": 1,
                "fort fisher (n.c. : fort)--history--19th century": 1,
                "north carolina--history--civil war, 1861-1865--hospitals": 1,
                "bombardment--north carolina--wilmington": 1,
                "united states--history--civil war, 1861-1865--engineering and construction": 1,
                "fortification--virginia--appomattox": 1,
                "horses--virginia": 1,
                "timber--virginia": 1,
                "voting--history--19th century": 1,
                "crook, george,--1829-1890": 1,
                "voting--virginia--history--19th century": 1,
                "new york (state).--militia": 1,
                "frederick (md.)--history--civil war, 1861-1865": 1,
                "confederate cemeteries--virginia--winchester": 1,
                "bridges--maryland": 1,
                "antietam creek (pa. and md.)--history--19th century": 1,
                "united states--army--infantry regiment, 1st (1796-1815)": 1,
                "cemeteries--virginia": 1,
                "new orleans (la.)--history--civil war, 1861-1865": 1,
                "slaughtering and slaughter-houses--history--19th century": 1,
                "hart county (ky.)": 1,
                "bridges--design and construction--history--19th century": 1,
                "military bridges--history--19th century": 1,
                "united states--army--pennsylvania infantry regiment, 77th (1861-1866)": 1,
                "hardin county (ky.)": 1,
                "steamships--history--19th century": 1,
                "louisville (ky.)": 1,
                "pontoon bridges--tennessee river": 1,
                "tennessee river": 1,
                "fortification--kentucky": 1,
                "licking river (ky.)": 1,
                "cavalry horses": 1,
                "farmhouses--history--19th century": 1,
                "united states--army--pennsylvania infantry regiment, 72nd (1861-1864)": 1,
                "bridges--history--19th century": 1,
                "church buildings--history": 1,
                "sharpsburg (md.)": 1,
                "yorktown (va.)": 1,
                "flag raising and lowering": 1,
                "united states--army--massachusetts infantry regiment, 24th (1861-1866)": 1,
                "fort thompson (portsmouth, va. : fort)": 1,
                "portsmouth (va.)": 1,
                "firing squads (execution)": 1,
                "petersburg crater, battle of, va., 1864": 1,
                "united states--army--corps, 18th (1862-1864)": 1,
                "maryland campaign, 1864": 1,
                "fort stevens (washington, d.c.)": 1,
                "railroad trains--coosa river (ga. and ala.)": 1,
                "railroad bridges--coosa river (ga. and ala.)": 1,
                "coosa river (ga. and ala.)": 1,
                "sedgwick, john,--1813-1864--death and burial": 1,
                "burnside, ambrose everett,--1824-1881": 1,
                "virginia--history--civil war, 1861-1865--medical care": 1,
                "mosby, john singleton,--1833-1916": 1,
                "west virginia--history--civil war, 1861-1865--underground movements": 1,
                "horse racing": 1,
                "lousiana--history--civil war, 1861-1865--campaigns": 1,
                "stevenson (ala.)--history": 1,
                "alabama--history--civil war, 1861-1865--prisons and prisoners": 1,
                "cotton (gunboat)": 1,
                "teche, bayou (la.)--history--19th century": 1,
                "chickamauga, battle of, ga., 1863": 1,
                "johnson, bradley t.--(bradley tyler),--1829-1903": 1,
                "hindman, thomas carmichael,--1828-1868": 1,
                "pennslyvania--history--civil war, 1861-1865": 1,
                "carriages and carts": 1,
                "vehicles, military": 1,
                "military camps--north carolina--murfreesboro": 1,
                "scows--maryland--williamsport": 1,
                "williamsport (md.)--history--19th century": 1,
                "fortification--maryland--funkstown": 1,
                "bombardment--maryland--funkstown": 1,
                "united states--army--transportation": 1,
                "emmitsburg (md.)--history--19th century": 1,
                "children--virginia--richmond--history--19th century": 1,
                "united states christian commission": 1,
                "virginia--history--civil war, 1861-1865--religious aspects.": 1,
                "military discipline--united states--history--19th century": 1,
                "fort huger (n.c. : fort)": 1,
                "african american women--history--19th century": 1,
                "freedmen--louisiana": 1,
                "mississippi river": 1,
                "military camps--maryland--baltimore": 1,
                "richmond (va.)--history--civil war, 1861-1865--african americans": 1,
                "soldiers--united states--history--19th century": 1,
                "goldsboro (n.c.)--history--19th century": 1,
                "mcgowan, samuel,--1819-1897": 1,
                "charleston (s.c.)--buildings, structures, etc.": 1,
                "prayer meetings--virginia": 1,
                "african americans--virginia--19th century": 1,
                "winchester, 3rd battle of, winchester, va., 1864": 1,
                "virginia--history--civil war, 1861-1865--monuments": 1,
                "loyalty oaths": 1,
                "military deserters--history--19th century": 1,
                "military camps--louisiana--la place": 1,
                "pontoon bridges--virginia": 1,
                "virginia--history--civil war, 1861-1865--women": 1,
                "fortification--north carolina--southport": 1,
                "north carolina--history--civil war, 1861-1865--african americans": 1,
                "southport (n.c.)--history--19th century": 1,
                "united states--history--civil war, 1861-1865--prisoners and prisons": 1,
                "executions and executioners--united states": 1,
                "united states--armed forces--headquarters": 1,
                "military camps--north carolina--cape fear": 1,
                "front royal (va.)": 1,
                "capitulations, military--history--19th century": 1,
                "fortification--mississippi--corinth": 1,
                "courthouses--history--19th century": 1,
                "fayetteville (n.c.)--history--19th century": 1,
                "united states--army--transport service": 1,
                "jamestown (ky.)": 1,
                "fulton (tenn.)": 1,
                "courthouses--north carolina--smithville": 1,
                "smithville (n.c.)--history--19th century": 1,
                "gravediggers--pennsylvania": 1,
                "church buildings--west virginia": 1,
                "dwellings--west virginia": 1,
                "columbia (s.c.)--history--19th century": 1,
                "georgia--history--civil war, 1861-1865--evacuation of civilians": 1,
                "women's colleges--virginia--hampton": 1,
                "hampton (va.)--history--19th century": 1,
                "batteries (ordnance)--south carolina--sullivans island": 1,
                "fire fighters": 1,
                "funeral rites and ceremonies": 1,
                "national cemeteries--missouri--st. louis": 1,
                "jefferson barracks (saint louis, mo.)": 1,
                "canals--united states": 1,
                "fish trade--virginia--history--19th century": 1,
                "african american soldiers": 1,
                "exhumation--virginia--history--19th century": 1,
                "mutiny--united states": 1,
                "morgan, john hunt,--1825-1864": 1,
                "cairo (ill.)": 1,
                "chattanooga (tenn.)": 1,
                "missionary ridge, battle of, tenn., 1863": 1,
                "cedar mountain, battle of, va., 1862": 1,
                "cedar mountain (culpeper county, va.)": 1,
                "fort jackson (la.)--history--siege, 1862": 1,
                "chesapeake and ohio canal (md. and washington, d.c.)": 1,
                "edwards ferry (md.)": 1,
                "gettysburg, battle of, gettysburg, pa., 1863": 1,
                "monrovia (md.)--history--19th century": 1,
                "bridgeport (ala.)--history": 1,
                "alabama--history--civil war, 1861-1865--prisoners and prisons": 1,
                "battlefields--georgia": 1,
                "georgia--history--civil war, 1861-1865--campaigns": 1,
                "charleston harbor (s.c.)": 1,
                "rolla (mo.)--history": 1,
                "united states--army--new york infantry regiment, 25th (1861-1863)--military life": 1,
                "postal service in art": 1,
                "mail sorting--virginia--history--19th century": 1,
                "military life": 1,
                "united states--army--corps, 17th": 1,
                "military life--united states--19th century": 1,
                "camp asboth (mo.)": 1,
                "military camps--south carolina--hilton head island": 1,
                "gillmore, quincy adams,--1825-1888": 1,
                "butchers--united states": 1,
                "united states.--army--military life": 1,
                "wool, john ellis,--1784-1869": 1,
                "norfolk (va.)--history--19th century": 1,
                "united states--army--new york infantry regiment, 44th (1861-1864)": 1,
                "military ceremonies, honors, and salutes--maryland": 1,
                "new york (state).--militia.--regiment, 71st": 1,
                "sickles, daniel edgar,--1819-1914": 1,
                "bradford, augustus w.--(augustus williamson),--1806-1881": 1,
                "united states--history--civil war, 1861-1865--flags": 1,
                "military camps--new york--hart island": 1,
                "hart island (n.y.)--history--19th century": 1,
                "parke, john g.": 1,
                "ayres, romeyn beck,--1825-1888": 1,
                "executions and executioners--virginia--fort monroe": 1,
                "hanging--virginia--fort monroe": 1,
                "united states--army of the potomac": 1,
                "firing squads (execution)--united states": 1,
                "military discipline--history--19th century": 1,
                "military discharge--history--19th century": 1,
                "military ceremonies, honors, and salutes--south carolina": 1,
                "sullivan's island (s.c. : island)": 1,
                "united states--army--ohio infantry regiment, 1st (1861-1864)": 1,
                "chicago (ill.)--buildings, structures, etc.": 1,
                "kansas--history--civil war, 1861-1865": 1,
                "fort riley (kan.)": 1,
                "ordnance--united states": 1,
                "battles--kentucky--licking river": 1,
                "battles--kentucky--cynthiana": 1,
                "confederate states of america.--army--kentucky cavalry regiment, 2nd": 1,
                "mining camps--pennsylvania--schuylkill county": 1,
                "stettin (screw gunboat)": 1,
                "prisoners of war--transportation": 1,
                "pamlico river (n.c.)": 1,
                "weitzel, g.--(godfrey),--1835-1884": 1,
                "teche, bayou (la.)": 1,
                "monongahela (screw sloop-of-war)": 1,
                "port hudson (la.)--history--siege, 1863": 1,
                "steamboats--history--19th century": 1,
                "steamboats--north carolina--winton": 1,
                "warships--virginia": 1,
                "artificial islands--virginia--hampton roads (harbor)": 1,
                "hampton roads (va. : harbor)": 1,
                "port royal (s.c.) expedition, 1861": 1,
                "port royal sound (s.c.)": 1,
                "united states--navy.--history--civil war, 1861-1865": 1,
                "steamboats--illinois": 1,
                "mississippi (side-wheel steamer)": 1,
                "shipwrecks--south carolina--sullivans island": 1,
                "singing": 1,
                "freedmen--history--19th century": 1,
                "iberville (ship)": 1,
                "north star (ship)": 1,
                "ships": 1,
                "united states.--navy--history--19th century": 1,
                "commodore barney (ship)": 1,
                "georgia--history--civil war, 1861-1865--naval operations": 1,
                "ogeechee river (ga.)": 1,
                "pascagoula river (miss.)": 1,
                "hot springs--arkansas": 1,
                "hot spring county (ark.)": 1,
                "becker, joseph,--1841-1910": 1,
                "lifeboats--new jersey--sea bright": 1,
                "watchtowers--history": 1,
                "point of rocks (va.)": 1,
                "watchtowers--history--19th century": 1,
                "military camps--united states--19th century": 1,
                "reconstruction (u.s. history, 1865-1877)--social aspects": 1,
                "charities--united states--history--19th century": 1,
                "united states--history--1865-1898": 1,
                "fortification--south carolina--james island": 1,
                "paddle steamers--south carolina": 1,
                "military camps--south carolina--sullivans island": 1,
                "quartermasters--united states": 1,
                "united states--army--new york infantry regiment, 34th (1861-1863)": 1,
                "fortification--virginia--harrisonburg": 1,
                "camp fremont (mo.)": 1,
                "iron-works--missouri--pilot knob": 1,
                "pilot knob (mo.)": 1,
                "fortification--missouri--st. louis": 1,
                "gunboats--history--19th century--pictorial works": 1,
                "fortification--north carolina--wilmington": 1,
                "gunboats--united states": 1,
                "collisions at sea--history--19th century": 1,
                "naval battles--history--19th century": 1,
                "che-kiang (steamer)": 1,
                "warships--south carolina--charleston harbor": 1,
                "pascagoula (miss.)": 1,
                "beaufort (s.c.)--buildings, structures, etc.": 1,
                "fairs--maryland--baltimore": 1,
                "railroad stations--virginia": 1,
                "kelly's ford (va.)": 1,
                "military railroads--virginia--design and construction": 1,
                "vehicles, military--virginia--history--19th century": 1,
                "railroads--virginia--engineering and construction": 1,
                "college of william and mary": 1,
                "sherman's march to the sea": 1,
                "pontoon bridges--savannah river (ga. and s.c.)": 1,
                "savannah (ga.)": 1,
                "butler, benjamin f.--(benjamin franklin),--1818-1893--homes and haunts": 1,
                "united states--history--civil war, 1861-1865--hospitals": 1,
                "mount jackson (va.)--history--19th century": 1,
                "milledgeville (ga.)--buildings, structures, etc.": 1,
                "united states--army--drill and tactics": 1,
                "military hospitals--georgia--atlanta": 1,
                "georgia--history--civil war, 1861-1865--hospitals": 1,
                "atlanta (ga.)--buildings, structures, etc.": 1,
                "alexandria (va.)--buildings, structures, etc.": 1,
                "frémont, john charles--1813-1890--homes and haunts": 1,
                "mount jackson (va.)": 1,
                "saint augustine (fla.)--buildings, structures, etc.": 1,
                "united states--army--barracks and quarters": 1,
                "cities and towns": 1,
                "harrisonburg (va.)": 1,
                "clark, william t.--(william thomas),--1831-1905": 1,
                "raleigh (n.c.)--history--19th century": 1,
                "hatteras, cape (n.c.)": 1,
                "pontoon bridges--virginia--history--19th century": 1,
                "steamboats--virginia--history--19th century": 1,
                "armored vessels": 1,
                "fortification--maryland": 1,
                "fort washington (md.)": 1,
                "warships--maryland--annapolis": 1,
                "military camps--washington (d.c.)": 1,
                "hatteras (gunboat)": 1,
                "naval battles--mexico, gulf of": 1,
                "mexico, gulf of": 1,
                "texas--history--civil war, 1861-1865": 1,
                "messengers--north carolina--wilmington": 1,
                "ships--virginia--james river": 1,
                "curlew (gunboat)--explosion, feb. 9, 1862": 1,
                "croatan sound (n.c.)": 1,
                "united states--navy.--north atlantic blockading squadron (1861-1865)": 1,
                "charleston (s.c)--history--civil war, 1861-1865": 1,
                "steamboats--tennessee--history--19th century": 1,
                "united states--army--dept. of the tennessee": 1,
                "south carolina--history--civil war, 1861-1865--blockades": 1,
                "blue ridge mountains": 1,
                "rappahannock county (va.)": 1,
                "carriages and carts--history--19th century": 1,
                "centreville (la.)--history--19th century": 1,
                "church buildings--history--19th century": 1,
                "charlestown (va.)": 1,
                "mitchel, o. m.--(ormsby macknight),--1809-1862--homes and haunts": 1
            }
        },
        {
            "field": "creator",
            "terms": { 
                "becker, joseph, 1841-1910": 200,
                "crane, w. t.": 55,
                "lovie, henri": 53,
                "taylor, james e., 1839-1901": 49,
                "schell, francis h., 1834-1909": 41,
                "bonwill, charles e. h., b. ca. 1836": 18,
                "mullen, e. f.": 14,
                "mccallum, andrew": 13,
                "lumley, arthur, ca. 1837-1912": 10,
                "schell, frederic b.": 7,
                "hall, edward s., b. ca. 1840": 7,
                "hillen, john francis edward, 1819-1865": 6,
                "forbes, edwin, 1839-1895": 6,
                "von luettwitz, adolphus h.": 5,
                "waud, william, d. 1878": 3,
                "mclaughlin, james w.": 2,
                "mccomas, william r": 2,
                "allis, solon m.": 1,
                "david, s. s.": 1,
                "o. c. r.": 1,
                "davis": 1,
                "maleas, john": 1,
                "j. e. b.": 1,
                "a. s. w.": 1,
                "coleman, s. a.": 1,
                "travis, bill d.": 1,
                "peters, w. t.": 1,
                "avery, john": 1,
                "b. h. d.": 1,
                "curtis, h. c.": 1,
                "h. a. o.": 1,
                "hoffman, j. p.": 1,
                "manning, a.": 1,
                "hough, e. b.": 1,
                "laycock": 1,
                "frot, s.": 1,
                "kellner, anthony": 1,
                "shaw, william v.": 1,
                "skiff": 1,
                "shaw": 1,
                "soule, charles, 1835-1897": 1,
                "f. o.": 1,
                "a. m.": 1,
                "hoffman, walter james, 1846-1899": 1,
                "gaddis, john": 1
            }
        },
        {
            "field": "format",
            "terms": { 
                "image/jpeg": 662
            }
        }
        
    ]
}
