Names
- Olmsted, Mildred Scott1
- Olmsted, Mildred Scott, 1890-1990.1
- Osborn, Chase S. (Chase Salmon), 1860-1
- Osborn, Chase S. (Chase Salmon), b. 18601
- Paine, Albert Bigelow, 1861-19371
- Paine, Albert Bigelow, 1861-1937.1
- Paquin, Samuel Savil, 1868-19431
- Paquin, Samuel Savil, 1868-1943.1
- Parkhurst, C. H. (Charles Henry), 1842-1933.1
- Parkhurst, Charles Henry, 1842-1933.1
- Pattengill, Henry Romaine, 1852-1918.1
- Patterson, John C., 1838-1910.1
- Paxson, Frederic L. (Frederic Logan), 1877-1948.1
- Peale, Norman Vincent, 1898-1
- Peale, Norman Vincent, 1898-1993.1
- Pearson, Karl G.1
- Pease, Theodore Calvin, 1887-1948.1
- Pelzer, Louis, 1879-1946.1
- Pennsylvania Committee for Total Disarmament1
- Pennsylvania Committee for Total Disarmament.1