Postcards, 1910-1911, sent between Andy Abbott in Vulcan, Michigan and Alice Heyden in Gunnislake, Cornwall.

Photographs, approximately 1860s-1930 and 1960s, from the estate of Hattie Harju Bartonen.

Photographs and one postcard, circa 1935-circa 2008, depicting Copper Country people, places, and events, including construction projects and the county sanatorium.

Photograph collection, 1843-1979 (bulk 1883-1960), of several generations of Brockway descendants, an early merchant and community building family in Michigan's Keweenaw Peninsula. Includes many photographs of the descendants of Daniel D. and Lucena Brockway, including members of the extended Farwell, Gardner and Childs family lines.

3 envelopes and 4 postcards with postal cancellations celebrating the bicentennial of Douglass Houghton's birth. Special ceremony was held in Douglass Houghton Hall at Michigan Technological University in Houghton, Michigan, November 7, 2009.

Postcards and postcard book, circa 1913-1920, featuring scenes of Michigan's Copper Country, especially Calumet and Laurium.

Collection, 1940-2008, of family genealogies and biographies of Hans E. Fredeen and his family. Also includes clippings, postcards of Copper Harbor, Michigan, and several articles written by Fredeen on Isle Royale and the Boy Scouts of America's history in Michigan's Upper Peninsula.

Records, 1885-1894, 1905-1930, of the Italian Mutual Beneficial Society in Calumet, Michigan.

Papers, circa 1900-circa 1940, of John T. McCall, an insurance agent in Houghton, Michigan. Includes correspondence, ledgers, photographs, postcards, licenses, receipts, and Houghton High School annuals. Also includes Masonic related items from the Houghton Lodge and other organizations as well as a Miners' Bulletin broadsheet from the 1913-1914 Copper Miners' Strike.

Collection, 1843-2020, of stock certificates, related documentation, and reference materials focusing primarily on copper mining corporations in the Keweenaw Peninsula and Ontonagon County, Michigan.