REMOVE

1. hills
2. sky
3. students
4. freight cars
5. faces

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. bushes (1)
4. exterior views (1)
5. hats (1)

More 

WHERE

1. Bow Island, Alberta, Cana … (1)

WHEN

1. 1918 (1)
2. 1925 (1)
3. between 1918 - 1925 (1)