Image caption on page 76 of the book US National Library of Medicine: "This bust of John F. Kennedy by Robert Berks is located today in main entranceway of the library. It is a replica of the large bust located in the grand foyer of the Kennedy Center for the Performing Arts in Washington, DC. Courtesy of Stephen J. Greenberg."
The National Library of Medicine believes this item to be in the public domain. (More information)