REMOVE

1. sky
2. buildings (structures)
3. fields (land)
4. silhouettes
5. farms
6. black-and-white film

WHAT

1. Visual Works (hierarchy n … (1)
2. benches (furniture) (1)
3. branches (plant component … (1)

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WHERE

1. Westminster, Maryland (1)

WHO

1. Campbell, Sandra L. Still (1)
2. Sandra L. Still Campbell; … (1)

WHEN

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