REMOVE

1. circa 1740 to 1745
2. 1935
3. 1745
4. 1970

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. clouds (1)
4. fields (land) (1)
5. hills (1)

WHO

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

WHEN

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