Names
- O'Shea, Michael Vincent, 1866-1932.1
- Oppenheim, James, 1882-1932.1
- Osborn, Chase S. (Chase Salmon), 1860-1
- Osborn, Stellanova, 1894-1988.1
- Palmer, Frank Herbert, 1853-1936.1
- Palmer, George Herbert, 1842-1933.1
- Parker, Francis W. (Francis Wayland), 1837-1902.1
- Parker, Francis Wayland, 1837-1902.1
- Parsons, William Edward, 1872-1939.1
- Partridge, Bellamy, 1877-1960.1
- Partridge, Bellamy.1
- Patten, Simon Nelson, 1852-1922.1
- Patterson, Robert Porter, 1891-19521
- Patterson, Robert Porter, 1891-1952.1
- Payne, E. George (Enoch George), 1877-1953.1
- Payne, Enoch George, 1877-1953.1
- Pearl, Edward E.1
- Pearle, Edward E.1
- Peattie, Donald Culross, 1898- .1
- Peattie, Donald Culross, 1898-1964.1