REMOVE

1. paths
2. freight cars
3. trains (vehicle groupings)

WHAT

1. black-and-white film (1)
2. buildings (structures) (1)
3. bushes (1)
4. exterior views (1)
5. farms (1)
6. fences (1)
7. fields (land) (1)
8. grain elevators (1)
9. landscapes (representatio … (1)
10. plants (1)
11. platforms (general) (1)
12. railroads (1)
13. roads (1)
14. signs (declatory or adver … (1)
15. sky (1)
16. utility poles (1)
17. Visual Works (hierarchy n … (1)

WHERE

1. Killam, Alberta, Canada (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1920 (1)
2. 1940 (1)
3. between 1920 - 1940 (1)