Library of Congress, Prints and Photographs Division Liljenquist Family collection, Call Number/Physical Location: PH - Riddle, no. 3 (AA size) [P&P], Library of Congress Control Number: 2017650851, Reproduction Number: LC-DIG-ppmsca-53822 (digital file from original)
Photograph shows prisoners using latrines in the foreground and masses of huts made of sticks and blankets; the cluster of huts in the foreground was referred to as "Mud Island" (Source: Notes by Sergeant Warren L. Goss of Co. H, 2nd Massachusetts Heavy Artillery Regiment, prisoner who aided the photographer at Gilder Lehrman Institute of American History. Goss, Warren (fl. ca. 1864-1880). Descriptions of A. J. Riddle's photographs).
