- Martin, O. B. (Oscar Baker), 1870-1935--Correspondence1
- Mays, Benjamin E. (Benjamin Elijah), 1894-19841
- McAdoo, Eleanor Wilson, 1889-1967--Correspondence1
- McArdle, Ruskin--Correspondence1
- McClellan, George Brinton, 1826-18851
- McCormick, Vance Criswell, 1872-1946--Correspondence1
- McGill, Ralph, 1898-19691
- Meaders, Cleater, 1921-20031
- Meriwether, James A., 1806-18521
- Mitchell, Margaret, 1900-19491
- Mondale, Walter F., 1928-20211
- Mumford, Lewis, 1895-19901
- Murdoch, E. N.1
- Murdoch, John K.1
- Neal, Cora--Correspondence1
- Nisbet, Eugenius Aristides, 1803-18711
- Ochs, Adolph S. (Adolph Simon), 1858-19351
- Ochs, Adolph S. (Adolph Simon), 1858-1935 1
- Odum, Howard Washington, 1884-19541
- Parker, Eleanor Gordon, 1858-1933--Correspondence1
