Letter from C. J. Rhoads to superintendents, 23 July 1931

Summary: 
Regarding biological product, vaccines and immunizations, contractors listed by units, and locations of branches which have each product.
Identifier: 
gdp-dc0020-0049
Citation: 
Letter from C. J. Rhoads to superintendents, 23 July 1931; Folder: 00-1931-734, Box 20; Central Classified Files, 1907–1939 (NAID 300324); Office of Indian Affairs; Record Group 75; National Archives and Records Administration-Washington, DC.