Munz, Dr. Phillip A. (1954–1957, 19 letters) Murdock, Margaret (1955, 1 letter) Murphy, Mrs. B. Augustine (1947, 5 letters) Nachtrieb, Mrs. Harold P. (1947, 1 letter) Naf, Dr. Ulrich (1954, 2 letters) Nally, Julian (1953–1954, 4 letters) Name, Ralph G. Van (1956, 1 letter) Nast, Charlotte (1951, 1 letter) National Research Council (1949–1951, 4 letters) Naumann, Mrs. Elsa (1948–1956, 44 letters) Navlet, Arthur E. (1954, 1 letter) Naylor, E.E. (1949, 2 letters) Nebel, Dr. Mabel Ruttle (1957, 2 letters)