Records of the Consolidated Mining Syndicate and abstracts of mining properties throughout Idaho; papers relating to Johnesse's wife, Mary Patten, including correspondence as state chair for the Democratic Party in Idaho during the 1930s, concerning her unsuccessful candidacy for Congress in 1938, and relating to the parish of St. Michael's Cathedral in Boise; photographs and memorabilia.

Material related to three Idaho Mining Association Annual Meetings in Boise and Sun Valley, including transcripts of speeches, correspondence, photographs and newspaper clippings.