- Mabel Marie Griffith, Compiler, Scrapbooks of a Morgantown Resident1
- Mann-Hutchinson Family Correspondence1
- Mascioli Family, Clipping, Scarf, and Card1
- Max Mathers Collection Papers1
- Maxwell Family Papers1
- Michael K. Johnson, Collector, Papers1
- Mildred Arnett-Reed Morgantown Scrapbook1
- Milton Cohen Papers1
- Monongalia Academy Bond and Invitation to Examination1
- Monongalia Academy Invitation to Examination1
- Monongalia Academy Minute Book1
- Monongalia Academy Typescript Narrative History1
- Monongalia Academy to West Virginia Agricultural College, Deed1
- Monongalia Academy, Samuel Haldeman, Grade Report and Letter1
- Monongalia Academy, Tuition Receipts and Grade Reports1