REMOVE

1. plants
2. automobiles
3. suits (main garments)
4. sky
5. berets
6. 1961

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. clouds (1)
4. farms (1)
5. fields (land) (1)

More 

WHERE

1. Westminster, Maryland (1)

WHO

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

WHEN

1. 1963 (1)
2. 1963 - 1964 (1)
3. 1964 (1)