Frank Lloyd WrightHelen FrankenthalerJosef AlbersRichard Pousette-DartRobert MotherwellSam FrancisWillem de Kooning
Dedalus FoundationKnoedler & CompanyPaine Webber IncorporatedSam Francis Estate/The Litho ShopThe Josef and Anni Albers FoundationThe Willem de Kooning Foundation