- Katherine Williams, Collector, Williams Family Papers, 1840/20051
- Kenneth W. Thompson Papers, 1972/199942
- Louise McNeill, Poet, Papers, 1861/1993, bulk 1970/19931
- Lyric Theatre Collection, 1922/2006, bulk 1922/19791
- Malcolm Davis, Artist, Papers, 1970/20155
- Marian McQuade Papers, 1853/19951
- Metropolitan Theatre, Morgantown, Records, 1910/200010
- Monongalia County Historical Records, 1792/1982, bulk 1878/19768
- Morgantown Municipal Records, 1838/20133
- Ollen Lawrence Burnette, Jr. papers, 1815/20141
- Ronald Lewis, Historian, Papers, 1850/2021, bulk 1970/202117
- Sally H. Thomas papers, 1968/201015
- Samy Elias, Engineering Professor, Personal Rapid Transit Records, 1967/19801
- Somerville family papers, 1821/201318
- Strother Family Papers, 1846/19901