REMOVE

1. water
2. autumn
3. rock
4. 1975

WHAT

1. clocks (1)
2. color film (film) (1)
3. machinery (1)
4. portraits (1)
5. quarries (extracting comp … (1)
6. Visual Works (hierarchy n … (1)
7. woods (plant communities) (1)

WHERE

1. Carroll County, Maryland (1)
2. Gettysburg, Pennsylvania (1)

WHO

1. Still, Clyfford (1)
2. Still, Patricia (1)

WHEN

1. 1975 November (1)