Hjalmar Petersen Resources

Records of Governors Floyd B. Olson, Hjalmar Petersen, and Elmer A. Benson, 1932-1938

Hjalmar Petersen papers, 1907-1968

Minnesota History magazine

Hjalmar Petersen of Minnesota: The Politics of Provincial Independence by Steven J. Keillor (St. Paul: Minnesota Historical Society Press, 1987)

Legislature Member Record, Minnesota Legislative Reference Library