- M. Caldwell Butler Papers1
- M. Rupert Cutler Papers3
- M. Thomas Inge papers1
- M.H. Ross, Collector, Papers5
- MCV Foundation/Monumental Church records9
- Mabel DeVries Tanner, Playwright, Correspondence and Play Scripts1
- Mabel Hoggard, Educator, Papers1
- Mabel Horn Letters and Photographs1
- Maben Jones Papers8
- Macil Ingram, Compiler, AFL-CIO Dept. of Education Materials1
- Maddex Family Papers1
- Madison E. Marye Papers2
- Maggie Metheny, Author, Typescript regarding Travel by Wagon from West Virginia to Kansas1
- Magruder School Parent Teacher Association Scrapbook2
- Mahala Chapman Mace Gregory Manuscripts1