Subject
- Railway Tunnels2
- Roebling Suspension Bridge (Cincinnati)2
- Ruins2
- Sailing Ships2
- Ships2
- Swimming (recreational)2
- Tourists2
- Towers2
- Tunnels2
- United States Hotel (Atlantic City)2
- United States Hotel (Saratoga)2
- War Memorials2
- Water2
- Water Supplies2
- Women2
- Agricultural labourers1
- Amelia Palace (Salt Lake City)1
- Aqueducts1
- Arms and Armaments1
- Artillery1