Walker, John, National Gallery of Art Washington, Harry N. Abrams Inc., New York, 1956 Folio-Box 21 Unit ID: [unnumbered] Date: 1956
Walker-Smith, Derek and Peter Walker, A Call to the Commonwealth: The Constructive Case, D. Walker-Smith, London [booklet], [n.d.] Box 463 Unit ID: [unnumbered] Date: [n.d.]