Names
- Osborn, Chase S. (Chase Salmon), 1860-1
- Osmeña, Sergio, 1878-1961.1
- Patton, John, 1850-1907.1
- Pinchot, Gifford, 1865-1946.1
- Poindexter, Miles, 1868-1946.1
- Port Huron Gas Light Company.1
- Porter-Hicks Farm (Ann Arbor, Mich.)1
- Powers, Perry Francis, 1857-1945.1
- Ramos, Alfredo.1
- Republican Party (Mich.)1
- Rich, John Treadway, 1841-1926.1
- Riggs, Henry Earle, 1865-1
- Root, Elihu, 1845-1937.1
- Roth, Filibert, 1858-1925.1
- Ruthven, Alexander Grant, 1882-1971.1
- Sawyer, Walter H. (Walter Hulme), 1861-1931.1
- Sink, Charles A. (Charles Albert), 1879-1972.1
- Sleeper, Albert E, 1862-1934.1
- Sleeper, Albert E., 1862-1934.1
- Smith, Henry Cassorte, 1859-1911.1