REMOVE

1. boys
2. students
3. easels
4. paintings (visual works)

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. black-and-white film (1)
4. chairs (furniture forms) (1)

More 

WHERE

1. Spokane, Washington (1)

WHEN

1. 1922 (1)
2. 1924 (1)
3. between 1922 - 1924 (1)