REMOVE

1. group portraits
2. musicians
3. musical instruments

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. brick (clay product) (1)
4. buildings (structures) (1)
5. exterior views (1)

More 

WHERE

1. Bow Island, Alberta, Cana … (1)

WHEN

1. 1915 (1)
2. 1920 (1)
3. between 1915 - 1920 (1)