Names
- Pavlov, Ivan Petrovich, 1849-1936.2
- Pinchot, Gifford, 1865-1946.2
- Pingree, Hazen S., 1840-1901.2
- Plunckett, Horace.2
- Pomari, M.2
- Presbyterian Church -- Michigan -- Ann Arbor.2
- Race Betterment Foundation.2
- Rockefeller, John D. (John Davison), 1874-1960.2
- Roosevelt, Franklin D. (Franklin Delano), 1882-1945.2
- Ruthven, Alexander Grant, 1882-2
- Ruthven, Alexander Grant, 1882-1971.2
- Sawyer, Walter H. (Walter Hulme), 1861-1931.2
- Seventh Day Adventist Church (Battle Creek, Mich.)2
- Shaw, Bernard, 1856-1950.2
- Shaw, Wilfred Byron, 1881-1959.2
- Sink, Charles A. (Charles Albert), 1879-1972.2
- Slosson, Preston W. (Preston William), 1892-2
- Slosson, Preston W. (Preston William), 1892-1984.2
- Smith, Shirley Wheeler, 1875-1959.2
- Stanley, Albert A. (Albert Augustus), 1851-1932.2