REMOVE

1. roads
2. rugs (textiles)
3. women
4. automobiles
5. neckties
6. exterior views

WHAT

1. black-and-white film (2)
2. buildings (structures) (1)
3. coats (garments) (1)
4. columns (architectural el … (1)
5. driveways (2)
6. freight cars (1)
7. hats (1)
8. houses (2)
9. lamps (lighting devices) (1)
10. license plates (1)
11. men (male humans) (1)
12. neighborhoods (2)
13. parking lots (1)
14. plants (2)
15. porches (1)
16. purses (ladies' accessori … (1)
17. railings (balustrades) (1)
18. railroads (1)
19. rails (transit system ele … (1)
20. rock (2)
21. rubbish (1)
22. shadows (1)
23. sidewalks (1)
24. signs (declatory or adver … (1)
25. sky (2)
26. soil (1)
27. stairs (1)
28. sunlight (1)
29. three-quarter views (1)
30. trains (vehicle groupings … (1)
31. trees (2)
32. trucks (1)
33. utility poles (1)
34. Visual Works (hierarchy n … (2)
35. wheels (components) (1)
36. workers (1)

WHERE

1. New Windsor, Maryland (2)

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. 1968 (1)
2. 1969 (1)