Names
- Olander, Oscar G. (Oscar Gustaf), 1899-1963.1
- Olson, Culbert L. (Culbert Levy), 1876-1962.1
- Osborn, Chase S. (Chase Salmon), b. 18601
- Osborn, Chase Salmon, 1860-1949.1
- Osborn, Stella (Brunt), 1894-1
- Osborn, Stellanova, 1894-19881
- Osmeña, Sergio, 1989-19611
- Parker, Francis LeJau, 1873-1966.1
- Parker, Frank, 1872-1947.1
- Patterson, Robert Porter, 1891-1952.1
- Pearson, Drew, 1897-1969.1
- Pepper, Claude, 1900-1989.1
- Perkins, Frances, 1882-1965.1
- Philippine War Relief of the United States.1
- Picard,Frank A., 1889-1963.1
- Pinchot, Gifford, 1865-1946.1
- Pittman, Key, 1872-1940.1
- Pollock, James Kerr, 1898-1
- Porter, Russell B.1
- Potter, Charles E. (Charles Edward), 1916-1979.1