- Martin, James Harold, 1904-1973.1
- Martin, Leslie L.1
- Martin, W. G.1
- Martinsburg Chamber of Commerce (Martinsburg, W. Va.). Industrial Committee.1
- Martinsburg Fire Company (Martinsburg, W. Va.)1
- Martinsburg Public Library (Martinsburg, W. Va.)1
- Marvel, Mason Edwin, 1921-1
- Mary Ingles Trail Associates (Winfield, W. Va.)1
- Maryland Artificial Breeding Cooperative.1
- Maryland Genealogical Society.1
- Maryland. Comptroller's Office.1
- Maryland. Publicity Commission.1
- Mason, George, 1725-1792.1
- Mason, J. A.1
- Mason, J. M. 1
- Mason, J. W. (John W.), 1842-1917.1
- Masonic Research Society of West Virginia.1
- Masontown United Methodist Church (Masontown, W. Va.)1
- Master Marble Company (Clarksburg, W. Va.)1
- Mates Creek District Primitive Baptist Association (Ky.)1
