REMOVE

1. shipbuilding
2. seascapes
3. cranes (equipment)
4. shipyards
5. ships
6. oil paint (paint)

WHAT

1. Visual works (hierarchy n … (1)
2. figures (representations) (1)
3. machinery (1)

More 

WHERE

1. San Francisco, California (1)

WHO

1. Still, Clyfford (1)

WHEN

1. 1942 (1)
2. Realist (1)
3. Regionalist (American Sce … (1)