- Outdoor recreation--United States.1
- Parades--United States.1
- Photography of mountains.1
- Pinchot, Gifford, 1865-1946.1
- Polar bear.1
- Political science--Canada.1
- Processions, Religious.1
- Rabbit hunting.1
- Railroad trains.1
- Railroads--Models.1
- Religion.1
- Rites and ceremonies--Australia.1
- Roosevelt, Franklin D. (Franklin Delano), 1882-1945.1
- Roosevelt, Franklin D., Jr. (Franklin Delano), 1914-1988.1
- Roosevelt, John A. (John Aspinwall), 1916-1981.1
- Ruins.1
- Rural conditions.1
- Search and rescue operations.1
- Ships.1
- Sopwith, Thomas, Sir, 1888-1989.1