Elizabeth Geary Hoopes Krusen (1908-2006) was a student and instructor at the New York School of Fine and Applied Art (later, Parsons School of Design). She specialized in watercolor interior design renderings. The collection consists of four renderings of residential interiors by Hoopes, two of which were commissioned by McMillen, Inc.

Irene Walker (1919-2002) was a Parsons School of Design alumna ('51) and an interior designer, who worked for the firm McMillen Inc., before establishing her own firm, Joie de Vivre, Irene Walker Inc., in 1966. The collection consists of Walker's student work and documentation of her professional work.