- War work22
- World War, 1914-191822
- Sick persons20
- Nurses19
- Patent medicines19
- Authors, American --20th century --Archives18
- Medicine, Military17
- Photography, Artistic16
- African American authors --20th century --Archives15
- Physicians15
- Couples14
- Health and hygiene14
- Syphilis14
- Vegetables14
- Accidents13
- Gonorrhea12
- Requirements12
- African Americans11
- Authors, Russian--20th century--Archives 11
- Condom use11