REMOVE

1. men (male humans)
2. plants
3. sky
4. workers
5. Visual Works (hierarchy name …
6. freight cars
7. ladders
8. coats (garments)
9. trains (vehicle groupings)
10. Campbell, Sandra L. Still
11. Still, Clyfford

WHAT

1. banks (landforms) (1)
2. black-and-white film (1)
3. bushes (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHO

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

WHEN

1. 1969 (1)