- R. Buckminster Fuller Collection, 1949/19789
- R. Emmett Mockler Papers, 1900/19591
- R. Gordon Wasson Letter to Lathrop S. Haskins, 19582
- R. Harvey Chappell, Jr. Papers, 1950/19824
- R. Wayne Kernodle Papers, 1940/19601
- R.E. Lee Camp, No. 1, Confederate Veterans Papers (SC-21), 1885/19584
- RMC Faculty, Staff, and Alumni Files, 1818/202425
- Rabbi Serouski Record Book, 1947/19702
- Rachel H. Thomas, Student, Memory Book Regarding Student Days at Marshall College, 1931/2011, bulk 1931/19391
- Racial and Ethnic Ephemera Collection, 1778/200514
- Radio Station WMMN, Fairmont Transcription Discs, 1939/1960, bulk 1942/19521
- Railroad Timetables, 1880/1968, bulk 1915/19271
- Raleigh County Military and Church Records, 1908/1959, bulk 1947/19591
- Raleigh County Photographs for Pictorial History, 1880/1968, bulk 1890/19601
- Raleigh General Hospital Nurses Alumnae Association Records, 1940/20211