Topic
- Marching bands 20
- Cayuse Indians 18
- Hotels 18
- Driving of horse-drawn vehicles 17
- Railroad tracks 17
- Ethnic costume 16
- Teachers 16
- Corrals 15
- Railroad stations 15
- Students 14
- Swimmers 14
- Architectural photography 13
- Rodeos 13
- Swimming pools 13
- Umatilla Indians 13
- Central business districts 12
- Log cabins 12
- Railroad accidents 12
- Staged photography 12
- Umatilla Indian Reservation (Or.) 12