Alexander Gardner, 1865, Title page from "Gardner's Photographic Sketch Book of the War" (Washington: Philp & Solomons, [1865]), Title page, Donald A. Heald - Rare Books, Prints & Maps, Courtesy of Donald A. Heald, #18897, LL/26995

William Pywell, 1862, August, Marshall House, Alexandria, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 1], Albumen print, 17.8 x 23.0 cm, George Eastman Museum, Courtesy of George Eastman House, LL/19084

Barnard & Gibson, 1862, March, Ruins at Manassas Junction, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 9], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1346), LL/14039

Barnard & Gibson, 1862, March, Ruins at Manassas Junction, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 10], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1350), LL/12437

Barnard & Gibson, 1862, Fortifications at Manassas, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 11], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1352), LL/14041

Wood & Gibson, 1862, May, Battery No. 1, Near Yorktown, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 12], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1351), LL/14040

James Gardner, 1864, December, Ruins of Norfolk Navy Yard, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 18], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1354), LL/12438

Alexander Gardner, 1862, Antietam Bridge, MD, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 19], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1355), LL/14024

Alexander Gardner, 1862, Burnside Bridge, Across Antietam Creek, Maryland, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 20], Albumen print, 17.8 x 22.9 cm (7 x 9 in), American Art Museum, Smithsonian Institution, Museum purchase from the Charles Isaacs Collection made possible in part by the Luisita L. and Franz H. Denghausen Endowment, LL/7565

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, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1356), LL/14023

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, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1357), LL/12440

Alexander Gardner, 1860s (ca), Scene in Pleasant Valley, MD, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 24], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1358), LL/12692

James Gardner, 1865, Meeting of the Shenandoah and Potomac, at Harper's Ferry, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 26], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1369), LL/13907

Alexander Gardner, 1862, November, What do I Want, John Henry, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 27], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1364), LL/12693

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, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1370), LL/12694

Timothy H. O'Sullivan, 1862, Lacey House, Falmouth, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 29], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1371), LL/14030

Timothy H. O'Sullivan, 1863, Fredericksburg, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 30], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1372), LL/14031

Timothy H. O'Sullivan, 1863, May, Pontoon Bridge Across the Rappahannock, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 32], Albumen print, from wet collodion negative, 7 1/16 x 9, Charles Isaacs Photographs, Inc, LL/4192

Timothy H. O'Sullivan, 1863, June, Group of Confederate Prisoners at Fairfax Courthouse, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 34], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1374), LL/14032

Timothy H. O'Sullivan, 1863, Gettysburg, Pennsylvania, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 35], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1363), LL/14026

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, 7 x 9 ins, Lee Gallery, Courtesy of Lee Gallery (Z1365), LL/14027

Timothy H. O'Sullivan, 1863, July, Field Where General Reynolds Fell, Gettysburg, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 37], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1367), LL/14028

Timothy H. O'Sullivan, 1863, July, Interior of Breastworks on Round Top, Gettysburg, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 38], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1368), LL/14029

Timothy H. O'Sullivan, 1863, July, Gateway of Cemetery, Gettysburg, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 39], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1375), LL/14033

Alexander Gardner, 1863, July, A Sharpshooter's Last Sleep, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 40], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1376), LL/12695

Alexander Gardner, 1863, A Sharpshooter's Last Sleep (Description), [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 40], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1376), LL/14042

Alexander Gardner, 1863, Home of a Rebel Sharpshooter, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 41], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1377), LL/13908

Alexander Gardner, 1863, June, Studying the Art of War, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 45], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1381), LL/12696

Timothy H. O'Sullivan, 1864, May, The Halt, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 50], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1383), LL/14034

James Gardner, 1864, Field Hospital, Second Army Corps, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 54], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1384), LL/13909

Timothy H. O'Sullivan, 1864, February, Pontoon Boat, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 58], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1385), LL/14035

James Gardner, 1864, May, Breaking Camp, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 63], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1387), LL/13910

Timothy H. O'Sullivan, 1863, Wagon Park, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 64], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1388), LL/14036

Timothy H. O'Sullivan, 1864, Chesterfield Bridge, North Anna, Virginia, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 66], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1389), LL/14037

David Knox, 1864, October, Mortar Dictator, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 75], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1392), LL/13912

David Knox, 1864, August, Forge Scene, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 77], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1393), LL/13913

Timothy H. O'Sullivan, n.d., View of the Petersburg Gas Works, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 81], Albumen print, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (47 / 213), LL/11462

Timothy H. O'Sullivan, n.d., View of the Petersburg Gas Works [Detail], [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 81], Albumen print, Larry Gottheim, Be-hold, Inc, Courtesy of Larry Gottheim - Be-Hold (47 / 213), LL/11463

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, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1395), LL/14038

Alexander Gardner, 1865, Ruins of Petersburg and Richmond Railroad Bridge, Across the James, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 88], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1400), LL/12697

Alexander Gardner, 1865, April, Libby Prison, Richmond, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 89], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1403), LL/13911

Alexander Gardner, 1865, April, Ruins of Arsenal, Richmond, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 91], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1405), LL/12698

John Reekie, 1865, Ruins of Gaines' Mill, Virginia, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 93], Albumen print, 17.8 x 22.9 cm (7 x 9 in), American Art Museum, Smithsonian Institution, Museum purchase from the Charles Isaacs Collection made possible in part by the Luisita L. and Franz H. Denghausen Endowment, LL/7605

John Reekie, 1865, April, A Burial Party, Cold Harbor, VA, [Gardner's Photographic Sketch Book of the War. Incidents of the War, pl. 94], Albumen print, 7 x 9 in, Lee Gallery, Courtesy of Lee Gallery (Z1407), LL/14025