Allan Pinkerton ("E.J. Allen") of the Secret Service on horseback. Antietam, Maryland, main eastern theater of the war, September-October 1862. Glass negative (wet collodion). View full size. Photograph by Alexander Gardner.
  BUY PRINT    Allan Pinkerton ("E.J. Allen") of the Secret Service on horseback. Antietam, Maryland, main eastern theater of the war, September-October 1862. Glass negative (wet collodion). Photograph by Alexander Gardner. | Click image for Comments. | Home | Browse All Photos