Names
- Perkins, John A. (John Alanson), 1914-1982.1
- Peterson, Reuben, 1862-1942.1
- Petrie, Robert Methven, 1906-1
- Pettit, Edison, 1889-1962.1
- Phelps, William Lyon, 1865-1943.1
- Phelps, William Lyon, 1868-1943.1
- Pillsbury, W. B. (Walter Bowers), 1872-1960.1
- Pollock, James K. (James Kerr), 1898-1968.1
- Pollock, James Kerr, 1898-1
- Potter, Louise, 1895-1
- Power, Eugene B., 1905-1
- Pyke, Alfred Joseph, 1880-1
- Pyke, Alfred Joseph.1
- Quarles, Donald Aubrey, 1894-1959.1
- Rackham Arthritis Research Unit (University of Michigan)1
- Reeves, Jesse Siddall, 1872-1
- Reeves, Jesse Siddall, 1872-1942.1
- Reichert, Rudolph Edward, 1887-1965.1
- Reisler, Joseph T.1
- Reynolds, Harrison G.1