REMOVE

1. sidewalks
2. buildings (structures)
3. farms
4. sky
5. farmhouses
6. black-and-white film
7. barns

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. beaches (1)

More 

WHERE

1. Ensenada, Baja California … (1)

WHEN

1. 1949 (1)
2. circa 1949 (1)