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
Fred Holland Day (or circle of), 1900-1910 (ca), The Castle, Little Good Harbor, Maine, Cyanotype, Lee Gallery, LL/13992