Virginia--History--Civil War, 1861-1865]]> Canals--Virginia--James River--History--19th century]]> Taylor, James E., 1839-1901]]> Virginia--James River]]> Virginia--Chesterfield county--Dutch Gap]]> United States--History--Civil War, 1861-1865--Engineering and construction]]> Virginia--History--Civil War, 1861-1865]]> Canals--Virginia--James River--History--19th century]]> Taylor, James E., 1839-1901]]> Virginia--James River]]> Virginia--Chesterfield county--Dutch Gap]]> Virginia--History--Civil War, 1861-1865]]> James River (Va.)]]> Watchtowers--History--19th century]]> Mullen, E. F.]]> Virginia--James River]]> Virginia--Chesterfield county--Dutch Gap]]> Virginia--History--Civil War, 1861-1865]]> James River (Va.)--History--19th century]]> Taylor, James E., 1839-1901]]> Virginia--James River]]> Virginia--Chesterfield county--Dutch Gap]]>