Names
- Ormandy, Eugene, 1899-1985.1
- Osborn, Chase S. (Chase Salmon), b. 18601
- Osborn, Chase Salmon, 1860-1949.1
- Osborn, Stellanova, 1894-1988.1
- Oswald, Marina, 1941-1
- Panama Canal.1
- Perkins, Dexter, 1889-1
- Perry, Stuart Hoffman, 1874-19571
- Pierpoint, Wilbur K., 1914-1
- Pinchot, Gifford, 1865-1946.1
- Pollock, James K. (James Kerr), 1898-1968.1
- Pollock, James Kerr, 1898-1
- Power, Eugene B., 1905-1
- Ray, P. Orman (Perley Orman), 1875-1
- Ray, P. Orman (Perley Orman), 1875.1
- Rea, Samuel, 1855-1929.1
- Reeves, Jesse Siddall, 1871-19421
- Reeves, Jesse Siddall, 1872-1942.1
- Roosevelt, Eleanor, 1884-1962.1
- Roosevelt, Theodore, 1858-1919.1