Collection
- Grand Army of the Republic. G. K. Warren Post No. 63 (East Tawas, Mich.) Organizational records, 1888-1924, and undated5
- Michigan Music Teachers' Association (MMTA), Organizational records, 1867, 2018, and undated5
- Parkhill Family Papers, 1875-1979, and undated5
- Robert K. Helmle Papers, 1887-1925, and undated5
- Walter Scott Ryder Papers, 1909-1956, and undated5
- Wells Family Papers, 1823-19465
- American National Red Cross. Isabella County Chapter (Mich.) Organizational records, 1917-19794
- Central Michigan University. College of Education and Human Services Vertical Files Collection, 1892-1998, and undated4
- Central Michigan University. Office of the President, President Charles L. Anspach Papers, 1905, 2001, and undated4
- Central Michigan University. School of Music Collection, 1904-2017, and undated4
- Clifford R. Carnahan Collection, 1881-1889, and undated4
- Collection, 1862, 19734
- David Smalley, David Smalley Family papers, 1865-20164
- George Washington Butterfield Papers, 1836-1986, and undated4
- George Weeks Papers, 1881-2019, and undated4
- John Harvey Kellogg Collection, 1889-1938, and undated4
- Marvin C. Beach Family correspondence, 1842-1957, and undated4
- Mount Pleasant Mission (Mount Pleasant, Mich.) Organizational Records, 1892-1969, undated4
- Robert S. Oakman Papers, 1882-1949, and undated4
- Sherry S. Sponseller Michigan history collection, 1872-2018 (Scattered) and undated4