REMOVE

1. sitting
2. eyeglasses
3. barriers
4. parks (recreation areas)
5. neckties
6. hats

WHAT

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

More 

WHERE

1. New Windsor, Maryland (1)
2. Westminster, Maryland (1)

WHO

1. Campbell, Sandra L. Still (1)
2. Sandra L. Still Campbell; … (1)

WHEN

1. 1964 (1)
2. 1966 (1)
3. after 1966 (1)