Names
- Perry School (Ann Arbor, Mich.)1
- Pinchot, Gifford, 1865-1946.1
- Pioneer High School (Ann Arbor, Mich.)1
- Poindexter, Miles, 1868-1946.1
- Pontiac, Oxford and Northern Railroad Company.1
- Port Huron Gas Light Company.1
- Port Huron and North Western Railway Company.1
- Porter Zouave Band (Ann Arbor, Mich.)1
- Powers, Perry Francis, 1857-1945.1
- Ramos, Alfredo.1
- Republican Party (Mich.)1
- Rich, John Treadway, 1841-1926.1
- Rio Grande Southern Railroad.1
- Root, Elihu, 1845-1937.1
- Roth, Filibert, 1858-1925.1
- Ruthven, Alexander Grant, 1882-1971.1
- Saginaw Valley and St. Louis Railroad Company.1
- Saginaw, Tuscola and Huron Railroad Company.1
- Saldern Logging Company.1
- Sawyer, Walter H. (Walter Hulme), 1861-1931.1