This primary source comes from the Records of the National Park Service.
Full Citation: Across the Bay to Golden Gate, from Berkeley; 1937; El Camino Real; Henry Peabody Collection, 1959–1960; Records of the National Park Service, Record Group 79; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/across-bay-golden-gate, May 6, 2024]