REMOVE

1. trees
2. farms
3. black-and-white film
4. machinery

WHAT

1. barns (1)
2. barriers (1)
3. buildings (structures) (2)
4. bushes (2)
5. clouds (1)
6. concrete block (1)
7. cornstalk (2)
8. cranes (equipment) (2)
9. exterior views (4)
10. farmers (2)
11. farmhouses (3)
12. farming (1)
13. farmyards (1)
14. fathers (1)
15. fences (2)
16. fields (land) (4)
17. forests (plant communitie … (3)
18. freight cars (2)
19. hats (2)
20. hay (material) (1)
21. horizon line (1)
22. landscapes (representatio … (3)
23. men (male humans) (4)
24. plants (3)
25. plows (agricultural equip … (2)
26. portraits (2)
27. railroads (2)
28. rails (transit system ele … (2)
29. roads (1)
30. rubbish (1)
31. sheds (storage structures … (1)
32. sky (4)
33. snow (precipitation) (1)
34. soil (1)
35. sunlight (1)
36. tools (1)
37. tractors (agricultural eq … (4)
38. trains (vehicle groupings … (2)
39. utility poles (3)
40. Visual Works (hierarchy n … (5)
41. wells (structures) (1)
42. winter (1)
43. wood products (1)
44. woods (plant communities) (1)
45. workers (2)
46. wrecks (sites) (2)
47. yards (areas) (1)

WHERE

1. New Windsor, Maryland (2)
2. Alberta, Canada (1)
3. Bow Island, Alberta, Cana … (1)
4. Westminster, Maryland (1)

More 

WHO

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

More 

WHEN

1. 1969 (2)
2. 1938 (1)
3. 1940 (1)
4. 1940 September 8 (1)
5. 1942 (1)

More