Names
- Ogg, Frederic Austin, 1878-1951.1
- Panama Canal.1
- Perkins, Dexter, 1889-1
- Pollock, James K. (James Kerr), 1898-1968.1
- Pollock, James Kerr, 1898-1
- Ray, P. Orman (Perley Orman), 1875-1
- Ray, P. Orman (Perley Orman), 1875.1
- Reeves, Jesse Siddall, 1871-19421
- Reeves, Jesse Siddall, 1872-1942.1
- Root, Elihu, 1845-1937.1
- Rowe, Leo S., 1871-1946.1
- Ruthven, Alexander Grant, 1882-1
- Ruthven, Alexander Grant, 1882-1971.1
- Sanders, Henry A. (Henry Arthur), 1868-1956.1
- Sayre, Francis Bowes, 1885-1972.1
- Schmitt, Bernadotte Everly, 1886-1969.1
- Sforza, Carlo, Conte, 1872-1952.1
- Sforza, Carlos, conte, 1872-1952.1
- Shotwell, James Thomson, 1874-1965.1
- Smith, Shirley Wheeler, 1875-1959.1