REMOVE

1. windows
2. paths
3. concrete block
4. barns

WHAT

1. barriers (1)
2. black-and-white film (1)
3. buildings (structures) (1)
4. doors (1)
5. exterior views (1)
6. fields (land) (1)
7. lamps (lighting devices) (1)
8. men (male humans) (1)
9. sheds (storage structures … (1)
10. sky (1)
11. snow (precipitation) (1)
12. studios (work spaces) (1)
13. trees (1)
14. utility poles (1)
15. Visual Works (hierarchy n … (1)
16. winter (1)
17. woods (plant communities) (1)
18. yards (areas) (1)

WHO

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

WHEN

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