REMOVE

1. easels
2. classrooms
3. horses (animals)

WHAT

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

More 

WHERE

1. Spokane, Washington (1)

WHEN

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