President Lincoln, Allan Pinkerton, and Maj. Gen. John A. McClernand., ca. 1860 - ca. 1865

ARC Identifier 530415 / Local Identifier 111-B-6348A

Photographs and other Graphic Materials from the War Department. Office of the Chief Signal Officer. (08/01/1866 - 09/18/1947)

Still Picture Records Section, Special Media Archives Services Division, College Park, MD

Item from Record Group 111: Records of the Office of the Chief Signal Officer, 1860 - 1985

Allan Pinkerton, chief of McClellan's secret service, with his men near Cumberland Landing, Virginia, 05/14/1862

ARC Identifier 522914 / Local Identifier 90-CM-385

Photographs and other Graphic Materials from the Department of the Treasury. U.S. Public Health and Marine Hospital Service. (1902 - 1912)

Still Picture Records Section, Special Media Archives Services Division, College Park, MD

Item from Record Group 90: Records of the Public Health Service, 1794 - 1990