- Department of Commerce. Bureau of the Census. Office of the Assistant Director for Operations. Geography Division. (3/13/1947 - 1968)
- National Archives at College Park - Cartographic
This item lists Enumeration Districts for: OR ED 30-64: ELECTION PRECINCT 41 DUNCAN OUTSIDE UMATILLA INDIAN RESERVATION. OR ED 30-65: ELECTION PRECINCT 41 DUNCAN, UMATILLA INDIAN RESERVATION (PART).