Timothy H. O'Sullivan, 1865, May, Quarters of Men in Fort Sedgwick, Generally Known as Fort Hell, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 83], Albumen print, Lee Gallery, LL/14038
James Gardner, 1864, Field Hospital, Second Army Corps, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 54], Albumen print, Lee Gallery, LL/13909
Alexander Gardner, 1862, October, President Lincoln on Battlefield of Antietam, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 23], Albumen print, Lee Gallery, LL/12440
Timothy H. O'Sullivan, 1862, Signal Tower on Elk Mountain, Mayland, Overlooking Battlefield of Antietam, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 22], Albumen print, Lee Gallery, LL/14023
Alexander Gardner, 1862, October, Guides to the Army of the Potomac, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 28], Albumen print, Lee Gallery, LL/12694