U.S. History: Biographies
- Robert Toombs
- Robert Treat Paine
- Robert Young Hayne
- Roger Morris
- Roger Sherman
- Roger Williams
- Ron Brown
- Ronald Wilson Reagan
- Roscoe Conkling
- Rosie the Riveter
- Roy Bean
- Rudolph William Giuliani
- Rufus Choate
- Rufus King
- Rufus Wheeler Peckham
- Ruth Benedict
- Ruth J. Simmons
- Rutherford Birchard Hayes
- Salmon Portland Chase
- Sam Nunn