REMOVE

1. barriers
2. mountains
3. cranes (equipment)
4. rivers
5. black-and-white film
6. fences

WHAT

1. artists (visual artists) (1)
2. barns (1)
3. benches (furniture) (1)
4. buildings (structures) (1)
5. bushes (1)
6. clouds (1)
7. columns (architectural el … (1)
8. daughters (1)
9. exterior views (1)
10. farmhouses (1)
11. fields (land) (1)
12. fronts (architectural) (1)
13. hills (1)
14. houses (1)
15. landscapes (representatio … (1)
16. men (male humans) (1)
17. plants (1)
18. porches (1)
19. roads (1)
20. shadows (1)
21. sheds (storage structures … (1)
22. silhouettes (1)
23. sky (1)
24. studios (work spaces) (1)
25. trees (1)
26. utility poles (1)
27. Visual Works (hierarchy n … (1)
28. wells (structures) (1)
29. women (1)
30. woods (plant communities) (1)
31. yards (areas) (1)

WHO

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

WHEN

1. 1961 (1)
2. after 1961 (1)