REMOVE

1. roads
2. parking lots
3. buildings (structures)
4. utility poles

WHAT

1. automobiles (1)
2. black-and-white film (1)
3. coats (garments) (1)
4. driveways (1)
5. exterior views (1)
6. freight cars (1)
7. hats (1)
8. houses (1)
9. lamps (lighting devices) (1)
10. men (male humans) (1)
11. neighborhoods (1)
12. plants (1)
13. purses (ladies' accessori … (1)
14. railroads (1)
15. rails (transit system ele … (1)
16. rock (1)
17. rubbish (1)
18. sidewalks (1)
19. signs (declatory or adver … (1)
20. sky (1)
21. soil (1)
22. trains (vehicle groupings … (1)
23. trees (1)
24. trucks (1)
25. Visual Works (hierarchy n … (1)
26. wheels (components) (1)
27. women (1)
28. workers (1)

WHERE

1. New Windsor, Maryland (1)

WHO

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

More 

WHEN

1. 1969 (1)