REMOVE

1. wheels (components)
2. sky
3. women

WHAT

1. automobiles (2)
2. black-and-white film (2)
3. buildings (structures) (1)
4. bushes (1)
5. coats (garments) (1)
6. daughters (1)
7. driveways (2)
8. exterior views (1)
9. farms (1)
10. fences (1)
11. fields (land) (1)
12. forests (plant communitie … (1)
13. freight cars (1)
14. hats (1)
15. houses (1)
16. lamps (lighting devices) (1)
17. license plates (1)
18. men (male humans) (1)
19. neighborhoods (1)
20. parking lots (1)
21. plants (2)
22. portraits (1)
23. purses (ladies' accessori … (1)
24. railroads (1)
25. rails (transit system ele … (1)
26. reflections (perceived pr … (1)
27. roads (1)
28. rock (2)
29. rubbish (1)
30. sidewalks (1)
31. signs (declatory or adver … (1)
32. soil (1)
33. trains (vehicle groupings … (1)
34. trees (2)
35. trucks (1)
36. utility poles (1)
37. Visual Works (hierarchy n … (2)
38. windows (1)
39. workers (1)
40. yards (areas) (1)

WHERE

1. New Windsor, Maryland (1)
2. Westminster, Maryland (1)

WHO

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

More 

WHEN

1. 1966 (1)
2. 1969 (1)
3. ca. 1966 (1)