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- Murdoch, E. N.1
- Murdoch, John K.1
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- Ochs, Adolph S. (Adolph Simon), 1858-19351
- Odum, Howard Washington, 1884-19541
- Parker, Eleanor Gordon, 1858-1933--Correspondence1
- Parker, Richard Wayne, 1848-1923--Correspondence1
- Phillips, Ulrich Bonnell, 1877-19341
- Raper, Arthur Franklin, 1899-1
- Roan, Leonard Strickland, 1849-19151
- Rosser, Luther Z., 1857-19281
- Rustin, Bayard, 1912-19871
- Sandburg, Carl, 1878-19671
- Sanger, W. Prentice--Correspondence1
- Schiff, Herbert G., Sr., 1894-19381
- Schlafly, Phyllis1
- Schoonmaker, Sarah1
- Schwartz, Dale M., 1940-20211
