Chief Officer and Clerks of the Ambulance Department

From the public domain images of artworks in the Metropolitan Museum of Art collection - Open Access Policy

Title: Chief Officer and Clerks of the Ambulance Department, 9th Army Corps, in Front of Petersburg, Virginia

Artist: Timothy H. O'Sullivan (American, born Ireland, 1840-1882)

Printer: Alexander Gardner (American, Glasgow, Scotland 1821-1882 Washington, D.C.)

Date: August 1864

Medium: Albumen silver print from glass negative