REMOVE

1. plants
2. farmhouses
3. sky
4. windows
5. buildings (structures)
6. wells (structures)

WHAT

1. Visual Works (hierarchy n … (1)
2. barns (1)
3. black-and-white film (1)
4. clouds (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

1. 1961 (1)
2. after 1961 (1)