REMOVE

1. spouses
2. eyeglasses
3. black-and-white film
4. neckties

WHAT

1. Visual Works (hierarchy n … (2)
2. artists (visual artists) (2)
3. barriers (2)
4. men (male humans) (2)

More 

WHERE

1. 128 W. 23rd St., New York … (1)
2. New York, New York (1)

WHO

1. Diane Still Knox; Diane K … (1)
2. Knox, Diane Still (1)

WHEN

1. 1958 (1)
2. 1959 (1)