See: Sculpture of Princeton University : including works from the John B. Putnam Jr. Memorial Collection in Marquand-Reference, NB235.P74 P74 2004, and Firestone-Trustee Reading Room, LD4600, Box 2, Folder 5; and, Living with modern sculpture : The John B. Putnam, Jr., Memorial Collection, Princeton University, by Patrick J. Kelleher, in Marquand-Reference, NB198 .P74 (and many other copies on campus).