Allan Pinkerton, and Union Army officers in
Allan Pinkerton, and Union Army officers in front of his tent headquarters at Antietam, Oct. 1862. His agents often worked undercover as Confederate soldiers and sympathizers to gather military intelligence during the US Civil War. Allan Pinkerton (standing, 3rd from right) served under the alias of Major E. J. Allen
Picture No
13123343
Media ID
45383575
Size
3000px x 2337px
(1.4MB)
Credit
Mary Evans / The Everett Collection
Source
Courtesy Everett Collection
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