Shelby White and Leon Levy Archives Center, Institute for Advanced Study, Princeton, NJ, USA
Louise Morse photograph albums, Book I, Page 51
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Attending a social gathering of the School of Mathematics hosted by Louise and Marston Morse, are (l. to r.): Professor and Mrs. Michael Jerome O'Neill, Graeme Bryce Segal, and Peggy and Roger W. Richardson, Jr. Louise Morse notes that this is the "third party."