Names
- Osborn, Chase S. (Chase Salmon), 1860-1
- Osias, Camilo1
- Osias, Camilo, 1889-1
- Osmeóna, Sergio, 1878-1961.1
- Otis, Robert Burns, 1879-1
- Parker, Edward Foster.1
- Parker, Francis LeJau, 1873-1
- Parker, Francis LeJau, 1873-1966.1
- Parker, Frank, 1872-1947.1
- Patterson, Robert Porter, 1891-1952.1
- Patton, Carl S. (Carl Safford), 1866-1939.1
- Patton, Carl S. (Carl Safford), 1891-1952.1
- Perkins, John A. (John Alanson), 1914-1
- Perkins, John A. (John Alanson), 1914-1982.1
- Peterson, Reuben, 1862-1942.1
- Phelps, William Lyon, 1865-1943.1
- Phelps, William Lyon, 1868-1943.1
- Pillsbury, W. B. (Walter Bowers), 1872-1960.1
- Pollock, James Kerr, 1898-1968.1
- Potter, Louise, 1895-1