Topic
- Portraits, Group 64
- Bridges 62
- Harbors 62
- Stadiums 60
- Children 59
- Horses 59
- Stores, Retail 59
- Schools 56
- Horse-drawn vehicles 52
- Trees 51
- Theaters 50
- Boats and boating 48
- School buildings 47
- Street-railroads 47
- Building 46
- Electric lines 42
- Portland (Or.). Fire Department 42
- Antique and classic cars 38
- Fire engines 37
- Flowers 37