Names
- Nowicki, Leo J., 1904-1
- O'Brien, John J.1
- Olander, Oscar G. (Oscar Gustaf), 1899-1963.1
- Olson, Culbert L. (Culbert Levy), 1876-1962.1
- Osborn, Chase S. (Chase Salmon), b. 18601
- Osborn, Stellanova, 1894-19881
- Osborn, Stellanova, 1894-1988.1
- Osmeña, Sergio, 1878-1961.1
- Parker, Francis LeJau, 1873-1966.1
- Pattengill, Albert Henderson, 1842-1906.1
- Patterson, Robert Porter, 1891-1952.1
- Pearson, Drew, 1897-1969.1
- Pepper, Claude, 1900-1989.1
- Perkins, Frances, 1882-1965.1
- Phelps, William Lyon, 1865-1943.1
- 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 K. (James Kerr), 1898-1968.1