REMOVE

1. railroads (infrastructure)
2. railroad stations
3. 1931
4. 1930

WHAT

1. Visual works (hierarchy n … (1)
2. figures (representations) (1)
3. oil paint (paint) (1)
4. railroad yards (1)

WHERE

1. Killam, Alberta, Canada (1)

WHO

1. Still, Clyfford (1)

WHEN

1. 1930-1931 (1)
2. Regionalist (American Sce … (1)