Collection
- Harriet M. Huebel Family Papers, 1895, 1967, and undated7
- Morley Brothers (firm: Saginaw, Mich.) Papers, 1833, 2009, undated7
- Organizational records, 1894, 2023, and undated7
- Papers, 1814-1958, and undated7
- D. H. Day Family Papers, 1860, 2009, and undated6
- Daughters of the American Revolution. Isabella Chapter (Mount Pleasant, Mich.) Organizational records, 1800, 2012, and undated6
- Dr. Charles E. and Jeri Baron Feltner Great Lakes Maritime History Collection, 1978, 2018, and undated6
- John C. Pollie Papers, 1910-1969, and undated6
- Mary M. Bourgeois Family Papers, 1880-1969 (Scattered), and undated6
- School District records, 1884-1964, and undated6
- Trelfa Photographic Collection, 1886-1920, 1886-19206
- Vernon (Isabella County, Mich. : Township) Township records, 1868, 1969, and undated6
- Amasa B. (Amasa Brown) Watson Family Papers, 1854-19325
- Amos Gould Family Papers, 1828, 1936, and undated5
- Central Michigan University. Office of the President, President Eugene C. Warriner Papers, 1882, 2002, and undated5
- Chandler (Mich. : Township) School District Records, 1878-1940, and undated5
- Collet Family Papers, 1840, 1936, and undated5
- Elden L. Brigham Collection, 1883-1992, and undated5
- Frank E. Robinson Family papers, 1839-1967, and undated5
- George H. Carpenter Family Papers, 1892-1937, and undated5