- Indian agents--South Dakota34
- Indian reservations--South Dakota34
- Firearms industry and trade--United States32
- Weapons industry--United States32
- Authors, English--18th century28
- Authors, American--20th century27
- Contract labor--Canada27
- Contracts--Canada--19th century27
- Fur trade--Canada27
- Fur trade--North America27
- Fur traders--Canada27
- Fur traders--United States27
- Indians of North America--Legal status, laws, etc.27
- Trading posts--Canada27
- Trading posts--North America27
- Painters--United States--20th Century--Archives25
- LGBTQ resource24
- Lawyers--United States24
- Islamic binding23
- American fiction--20th century22