REMOVE

1. hats
2. trucks
3. black-and-white film
4. buildings (structures)
5. soil
6. roads

WHAT

1. Visual Works (hierarchy n … (1)
2. branches (plant component … (1)
3. close-up views (1)
4. doors (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

1. 1961 (1)
2. after 1961 (1)