Antietam, Md. President Lincoln with General George B. McClellan and group of officers

Photograph from the main eastern theater of the war, Battle of Antietam, September-October 1862. 1. Col. Delos B. Sacket, I.G. 2. Capt. George Monteith. 3. Lt. Col. Nelson B. Sweitzer. 4. Gen. George W. Morell. 5. Col. Alexander S. Webb, Chief of Staff, 5th Corps. 6. Gen. George B. McClellan. 7. Scout Adams. 8. Dr. Jonathan Letterman, Army Medical Director. 9. Unknown. 10. President Lincoln. 11. Gen. Henry J. Hunt. 12. Gen. Fitz-John Porter. 13. Unknown. 14. Col. Frederick T. Locke, A.A.G. 15. Gen. Andrew A. Humphreys. 16. Capt. George Armstrong Custer.
Civil War photographs, 1861-1865 / compiled by Hirst D. Milhollen and Donald H. Mugridge, Washington, D.C. : Library of Congress, 1977. No. 0148
Title from Milhollen and Mugridge.
Additional information from Katz, D. Mark. Witness to an era: the life and photographs of Alexander Gardner, 1991.
Credit line: Civil war photographs, 1861-1865, Library of Congress, Prints and Photographs Division.
General information about Civil war photographs is available at loc.gov
Forms part of: Civil war photographs, 1861-1865 (Library of Congress).
Published in: Viewpoints; a selection from the pictorial collections of the Library of Congress ... Washington : Library of Congress ..., 1975, no. 75.
Selected Civil War Photographs, 1861-1865.

Alexander Gardner (October 17, 1821 - December 10, 1882) was a Scottish photographer who is best known for his photographs of the American Civil War. He emigrated to the United States in 1856 and worked as a photographer in Mathew Brady's studio. Gardner was sent to document the American Civil War and produced some of the most iconic images of the conflict, including photographs of the battlefields at Antietam and Gettysburg. After the war, Gardner photographed President Lincoln and the American West, including images of Native Americans, settlers, and the construction of the transcontinental railroad.