REMOVE

1. trees
2. rock
3. tools
4. railroads

WHAT

1. barns (1)
2. black-and-white film (1)
3. exterior views (1)
4. farmers (1)
5. farms (1)
6. farmyards (1)
7. fathers (1)
8. fences (1)
9. hats (1)
10. hay (material) (1)
11. machinery (1)
12. men (male humans) (1)
13. portraits (1)
14. rubbish (1)
15. sheds (storage structures … (1)
16. Visual Works (hierarchy n … (1)
17. wells (structures) (1)
18. wood products (1)

WHERE

1. Alberta, Canada (1)

WHO

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

WHEN

1. 1940 (1)
2. 1940 September 8 (1)