REMOVE

1. rock
2. machinery
3. portraits
4. autumn

WHAT

1. clocks (1)
2. color film (film) (1)
3. quarries (extracting comp … (1)
4. Visual Works (hierarchy n … (1)
5. water (1)
6. 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 (1)
2. 1975 November (1)