The National Forests of America . SD426 F73 United States, Senate, Committee on Agriculture and Forestry. U.S. Government Printing Office, 1961. 9.html For address and phone number, see above. The following collections are reported in the National Union Catalog of Manuscript Collections and other sources to have materials relating to Orville Freeman, but finding aids and descriptions are not available on-line.
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Minnesota Historical Society 345 Kellogg Blvd.