REMOVE

1. railroads
2. automobiles
3. buildings (structures)
4. windows
5. fields (land)

WHAT

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

WHO

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

WHEN

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