- Dwellings--Iowa--Red Oak26
- Plazas--Iowa--Red Oak10
- Schools--Iowa--Red Oak10
- Barns--Iowa--Red Oak8
- Cities & towns--Iowa8
- Longstreet, Sam, b. 18758
- Bridges--Iowa--Red Oak6
- Railroad stations--Iowa--Red Oak6
- Stores & shops--Iowa--Red Oak6
- Austin, Carl, 1873-19235
- Chicago, Burlington & Quincy Railroad Company5
- Iddings, Frank, 1868-19525
- Dirt roads--Iowa--Red Oak4
- Bishop, Claude3
- Butterfield, Grace3
- Carriages & coaches--American--Iowa--Red Oak3
- Churches--Iowa--Red Oak3
- Farms--Iowa--Red Oak3
- Reilley, William S., b. 1871 or 723
- Rivers--Iowa--Red Oak3