- Linda Lavin Papers, 1940/1995, bulk 1940/19951
- Lindsey and Gladden Family Papers, 1893/19121
- Lloyd H. and Ruth Elizabeth Williams Papers, 1917/2008, bulk 1947/19591
- Lynne O'Neill Papers
1955-19751
- Lynne O'Neill Papers, 1955/19751
- Mae Alvan Belt Diaries
1933-19431
- Mae Alvan Belt Diaries, 1933/19431
- Marie Rifenburg Diary, 19341
- Martha Ann Unger Scrapbook, 1935/19401
- Matthew Whaley School Collection, 1850/2012, bulk 1880/19601
- Maud M. Coleman Obituary, 18781
- Maud Miller Buxton Family Papers, 1891/1962, bulk 1891/19471
- Maude M. Presslor Papers, 1913-1972, 1913/1972, bulk 1943/19721
- McGilvray Family papers, 1942/19431
- Mina Barnhouse Diary, 19451