This primary source comes from the Records of the War Department General and Special Staffs, 1860 - 1952.
Full Citation: Photograph 165-WW-114B-1; Colleges and Universities - Tuskegee Institute - Students Army Training Corps Class in Plumbing at N.A. Training Branch, Tuskegee Institute, Alabama; 1917-1918; Colleges and Universities - Tuskegee Institute; American Unofficial Collection of World War I Photographs, 1917 - 1918; Records of the War Department General and Special Staffs, 1860 - 1952, Record Group 165; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/students-army-training-corps-class-plumbing-tuskegee-institute-alabama, March 28, 2024]