Including correspondence with Edgar Britton

Including correspondence with John Cowles, Gardner Cowles, and Alexander Calder

Including correspondence with Jonathan Daniels

Including correspondence with Albert Einstein, Norman A. Erbe

Including correspondence with Walter Gelhorn

Including correspondence with Bourke B. Hickenlooper and Leo A. Hoegh

Including correspondence with Walter H. Judd

Including correspondence with David Kruidenier, Jr.; Leon H. Keyserlin

Including correspondence with James Lecha, Mrs. Malcolm D. (Anna) Lomas, Mauricio Lasansky, and Daniel Longwell

Including correspondence with Karl Menninger, Jack Miller, Thomas E. Martin, and Stanley Marcus

Including correspondence with George Nagle, Louise Noun, and Roy Neuberger

Including correspondence with Charles H. Percy