- Arici, Graziano1
- Arnold, Eve3
- Arthur Kline and Company1
- Atherton, Gertrude Franklin Horn, 1857-19481
- Baader Holst, Matthias, 1962-1
- Babbitt Brothers Trading Co1
- Bachrach1
- Badlam, Maude1
- Bagnato, Gene 1
- Baker, Oliver2
- Balanchine, George, choreographer1
- Baldwin, Schuyler C1
- Banks, Richard, 1929-1
- Banyan Press1
- Bara, Theda, 1890-19551
- Bara, Tina, 1962-1
- Bardell, J. C17
- Barnard, George N., 1819-19021
- Barnes Foundation1
- Barnes, Will C. (Will Croft), 1858-19363