1. Congressional districts for the 93rd Congress Author/Creator: United States. Bureau of the Census Publication/Creation: Washington, D.C. : U.S. Govt. Print. Off, 1972 Resource Type: Map Access & Availability: Loading
2. Congressional districts for the 92nd Congress (including redistricting actions to August 1, 1970) Author/Creator: United States. Bureau of the Census Publication/Creation: Washington : U.S. Govt. Print. Off, 1970 Resource Type: Map Access & Availability: Loading
3. Congressional districts of the 100th Congress of the United States (January 1987 to January 1989) Author/Creator: United States. Bureau of the Census. Geography Division Publication/Creation: [Washington, D.C.] : Bureau of the Census : For sale by the Supt., of Docs., U.S. G.P.O., [1986] Resource Type: Map Access & Availability: Loading
4. Corn yield per acre, by counties of the United States, 1964 Author/Creator: United States. Bureau of the Census. Geography Division, cartographer Publication/Creation: Washington, D.C. : For sale by the Superintendent of Document, U.S. Government Printing Office, 1970 Resource Type: Map Access & Availability: Loading
5. Congressional districts for the 91st Congress : (including redistricting actions to August 1, 1968) Author/Creator: United States. Bureau of the Census. Geography Division, cartographer Publication/Creation: Washington, D.C. : For the sale of Superintendent of Documents, U.S. Government Printing Office, 1968 Resource Type: Map Access & Availability: Loading
6. Congressional districts for the 89th Congress : (includes redistricting actions to September 1, 1964) Author/Creator: United States. Bureau of the Census. Geography Division, cartographer Publication/Creation: Washington, D.C. : For Sale by the Superintendent of Documents, U.S. Government Printing Office, 1964 Resource Type: Map Access & Availability: Loading