- National Gallery Of Art
- Thatcher Freund
- Hal Foster
- Calvin Martin
- Gérald van der Kemp
- J.M. Adovasio
- Tim Forrest
- Margaux Tartarotti
- P.D. Phatak
- D.D. Guttenplan
- Ed Reinhardt
- Victoria and Albert Museum
- Verna Cook Salomonsky
- Meredith Gladstone
- Heidi Pfeil Dougherty
- University of Pennsylvania
- Olga Soffer
- John T. Kirk
- Jim Joyce
- E. Michael Lewis