Keywords: Chief Engineer Benjamin F. Isherwood - NARA - 525962.tif Scope and content General notes 525962 Local identifier 111-B-1761 War Department Office of the Chief Signal Officer 08/01/1866 - 09/18/1947 NARA-Author Brady National Photographic Art Gallery Washington D C 1858 - Photographer 1135962 Organization <br /> Still Picture Records Section Special Media Archives Services Division NWCS-S National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 circa 1860 1865 Record group Record Group 111 Records of the Office of the Chief Signal Officer 1860 - 1985 Record group ARC 440 Mathew Brady Photographs of Civil War-Era Personalities and Scenes compiled 1921 - 1940 documenting the period 1860 - 1865 Series ARC 524418 File unit File unit ARC Variant control numbers NAIL Control Number NWDNS-111-B-1761 yes Other versions <gallery> File Chief_Engineer_Benjamin_F _Isherwood_-_NARA_-_525962 tif tif File Chief_Engineer_Benjamin_F _Isherwood_-_NARA_-_525962 jpg jpg </gallery> NARA-cooperation PD-USGov Stereo images NARA TIF images with categorized JPGs |