William Pywell 1864, February The levee at Vicksburg, Miss., February, 1864 [The War for the Union. Photographic War History, 1861-1865.]
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s02500 (digital file from original stereograph, front) LC-DIG-stereo-2s02500 (digital file from original stereograph, back) LC-USZ62-27817 (b&w film copy neg. of half stereo) LC-USZ61-1597 (b&w film copy neg. of full stereo)
