Topic
- Indians of North America 18
- Agricultural machinery 17
- Driving of horse-drawn vehicles 17
- Railroad tracks 17
- Wheat--Harvesting 17
- Teachers 16
- Corrals 15
- Railroad stations 15
- Students 14
- Architectural photography 13
- Rodeos 13
- Swimmers 13
- Central business districts 12
- Ethnic costume 12
- Log cabins 12
- Railroad accidents 12
- Staged photography 12
- Swimming pools 12
- Indian blankets 11
- Pioneers 11