REMOVE

1. hills
2. boys
3. exterior views
4. 1920

WHAT

1. automobiles (1)
2. farmers (1)
3. fields (land) (1)
4. group portraits (1)
5. landscapes (representatio … (1)
6. men (male humans) (1)
7. platforms (general) (1)
8. silver gelatin (1)
9. sky (1)
10. trees (1)
11. Visual Works (hierarchy n … (1)

WHERE

1. Alberta, Canada (1)

WHO

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

WHEN

1. 1945 (1)
2. between circa 1929 and ci … (1)