1863年威克斯堡之战在海上与陆地上作战的情形

出处: Kurz & Allison, lithographer. "Siege of Vicksburg--13, 15, & 17 Corps, Commanded by Gen. U.S. Grant, Assisted by the Navy Under Admiral Porter--Surrender, July 4, 1863." Copyright 1888. Prints and Photographs Division, Library of Congress.