REMOVE

1. Photographs
2. Glass negatives
3. negative
4. Musicians.
5. Music ensembles.
6. Genthe, Arnold

WHAT

1. Glass negatives (1)
2. Music ensembles. (1)

WHO

1. Genthe, Arnold (1)
2. Library of Congress Print … (1)

WHEN

1. 1869-1942 (1)
2. 1937 (1)
3. 1942 (1)
4. between 1937 and 1942 (1)