This primary source comes from the Records of the Bureau of Indian Affairs.
National Archives Identifier:
285373Full Citation: Photograph 75-HAS(PHO)-64; Tank Going Over the Top; 1918; World War I photographs, 1918; Photographs, 1900 - 1960; Records of the Bureau of Indian Affairs, Record Group 75; National Archives at Kansas City, Kansas City, MO. [Online Version, https://www.docsteach.org/documents/document/tank-over-top, May 13, 2024]