REMOVE

1. trees
2. sky
3. clouds
4. farms
5. utility poles
6. plants
7. farmhouses

WHAT

1. Visual Works (hierarchy n … (1)
2. barns (1)
3. black-and-white film (1)
4. branches (plant component … (1)
5. buildings (structures) (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

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