REMOVE

1. farms
2. farmers
3. wheat
4. sky
5. farming
6. 1940

WHAT

1. Visual Works (hierarchy n … (3)
2. artists (visual artists) (3)
3. black-and-white film (3)
4. geometric patterns (3)
5. hats (3)

More 

WHERE

1. Westminster, Maryland (3)

WHO

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

WHEN

1. 1964 (1)
2. 1965 (2)
3. 1966 (2)
4. ca. 1965 - 1966 (2)

Less