- Liberty Iron Furnace Collection454
- Linda Clark Collection, 1792/191694
- Lorene Irving Collection, 1912/19287
- Margaret Hoffman Collection, 1877/1969319
- Margaret Hoffman Collection, 1893-1969238
- Markley's Store Ledger (1948-1949), 1948/19491
- Mary Jo Sweeney Collection, 1829-194811
- Mary Nelson Collection, 1998/2003235
- Massanutten Council Junior Order of American Mechanics ledger, 1895/19001
- Minnick Family Quartet Collection, 19713
- Mountain Courier Collection, 1994-20086
- Mt. Airy School Collection, 1847/198968
- Mt. Zion Lutheran Church Collection, 1856-20191,017
- Nelson Photograph Collection, 1910/195013
- Nick Racey Collection, 1766/1941322