Eighteen photographs, June 1958-January 1959, depicting construction workers and progress on the Portage Lake Lift Bridge.

Guest book, 1962-1969, of the Phi Lambda Beta at Michigan Technological University in Houghton, Michigan. Includes guest registers for events hosted by the association such as socials, rush parties, hayrides, sleigh rides and various other functions.

Newsletters, 1971-1972, of the Student Life Committee at Michigan Technological University in Houghton, Michigan.

Records, 1851-1999, of the First Congregational Church of Hancock, Michigan, the First Presbyterian Church of Houghton, Michigan and the Portage Lake United Church of Houghton, Michigan. Includes minutes, financial reports, membership records, photographs, correspondence and other records.

Records, 1969-1994, of the Portage Lake United Ministries in Higher Education, located in Houghton, Michigan. Includes correspondence, corporation records, financial records, minutes, reports and background information as well as other gathered ephemera. While independent of Michigan Technological University, there was an obvious geographical and mission-oriented connection to the university and some of the records relate to programs and outreach to the university.

Records, 1969-1993 (bulk 1992), of the Professional Women's Caucus of Michigan Technological University in Houghton, Michigan. Includes rules, policies, procedures, minutes, agendas, articles, and President's Cabinet Observer Reports.

Photograph collection, undated, featuring glass plate negatives of the Quincy Mining Company in Hancock, Michigan and the Huron Mining Company in Houghton, Michigan. Both mine and mill sites are depicted, as well as other Copper Country locations.

Patents, 1906, issued to Thomas R. Hasley of Houghton, Michigan. The patents are for a new and improved railway tie that is described as being cheap to manufacture, relatively light yet strong enough to make it easily handled without the danger of breaking.

Papers, circa 1965-circa 1979, of Dr. Raymond Lloyd Smith, sixth president of Michigan Technological University in Houghton, Michigan. Includes minutes, correspondence and clippings as well as files and reports on long range planning, campus building plans, the Ford Forestry Center and the Sault St. Marie branch of Michigan Technolgical University. Also includes photographs and audiovisual materials.

Correspondence, 1927-1945, between Rex R. Seeber, a graduate and professor at the Michigan College of Mining and Technology (now Michigan Technological University) in Houghton, Michigan and his former students. Includes details of the former students' jobs at various mining companies, both nationally and internationally, as well as Seeber's news about the College and former classmates.