REMOVE

1. trees
2. plants
3. clouds
4. winter

WHAT

1. black-and-white film (1)
2. farms (1)
3. fields (land) (1)
4. forests (plant communitie … (1)
5. landscapes (representatio … (1)
6. sky (1)
7. snow (precipitation) (1)
8. Visual Works (hierarchy n … (1)
9. yards (areas) (1)

WHERE

1. Westminster, Maryland (1)

WHO

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

WHEN

1. 1963 (1)
2. 1963 - 1964 (1)
3. 1964 (1)