David Knox, 1864, August, Forge Scene, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 77], Albumen print, Lee Gallery, LL/13913
David Knox, 1864, October, Mortar Dictator, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 75], Albumen print, Lee Gallery, LL/13912
Timothy H. O'Sullivan, 1863, July, A Harvest of Death, Gettysburg, Pennsylvania, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 36], Albumen print, Lee Gallery, LL/14027
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