REMOVE

1. trees
2. farmyards
3. farmhouses
4. farms
5. stairs
6. birds (animals)

WHAT

1. banks (landforms) (1)
2. barns (1)
3. black-and-white film (1)
4. buildings (structures) (1)
5. doors (1)
6. exterior views (1)
7. fences (1)
8. fields (land) (1)
9. forests (plant communitie … (1)
10. landscapes (representatio … (1)
11. plants (1)
12. porches (1)
13. roads (1)
14. sidewalks (1)
15. sky (1)
16. soil (1)
17. utility poles (1)
18. Visual Works (hierarchy n … (1)
19. windows (1)
20. yards (areas) (1)

WHO

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

WHEN

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