Names
- O'Brien, Patrick H. (Patrick Henry), 1868-1959.1
- O'Brien, Patrick Henry, 1868-1
- O'Hara, John J., 1885-1
- Olds, Ransom Eli, 1864-1950.1
- Osborn, Chase S. (Chase Salmon), 1860-1949.1
- Osborn, Chase S. (Chase Salmon), b. 1860.1
- Osborn, Stella (Brunt), 1894-1
- Osborn, Stellanova, 1894-1988.1
- Pearson, Drew, 1897-1969.1
- Pere Marquette no. 20 (Ship)1
- Perkins, Frances, 1880-1965.1
- Perkins, Frances, 1882-1965.1
- Person, Seymour Howe, 1879-1957.1
- Picard, Frank A., 1889-1963.1
- Picard,Frank A., 1889-1963.1
- Pinchot, Gifford, 1865-1946.1
- Pollock, James Kerr, 1898-1
- Pollock, James Kerr, 1898-1968.1
- Potter, William W., 1869-1940.1
- Proxmire, William.1