This primary source comes from the Records of the U.S. Marine Corps.
Full Citation: 127-MN-83714; Two Indian Marine Observers on Hill Overlooking Garapan Emulate the Silent Watchfulness of their Forefathers while Manning their Observation Post; 6/27/1944; Photographs of Navajo Indian "Code-Talkers" in the U.S. Marine Corps, 1943–1948; Records of the U.S. Marine Corps, Record Group 127; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/two-indian-marine-observers-on-hill, June 15, 2025]