Mehlquist, Dr. Gustav A.L. (1948, 3 letters) Mehra, Dr. P.N. (1952, 1 letter) Meikle, Catherine E. (1952, 2 letters) Menendez, Dr. Eduardo Braun (1944, 3 letters) Mercer, H.J. (1955, 1 letter) Mercier, A.T. (1947–1948, 2 letters) Meredith, Mrs. A.O. (1947, 3 letters) Merner, Garfield D. (1955–1956, 3 letters) Merrill, Dr. E.D. (1952–1955, 15 letters) Metcalf, Roy D. (1946–1949, 6 letters) Meyer, Fred G. (1948, 1 letter) Meyer, Dr. Teodoro (1956, 1 letter) Meyer-Rusca, Don Walterio (1959, 1 letter) De Mezey, Alberta A. (1947, 2 letters) Mezzera, Guido (1950–1952, 2 letters) Micocci, Antonio A. (1949, 3 letters) Millar, Dr. John R. (1949–1958, 14 letters) Miller, Dr. A.H. (1946, 1 letter) Miller, Charles C. (1947, 1 letter) Miller, Eleanor (1950, 1 letter) Miller, Mrs. Henley (1950, 1 letter) Miller, Mrs. Lois Mattox (1956, 2 letters) Miller, Robert D. (1959, 2 letters) Miller, Sylvia (1958, 1 letter) Minoprio, Dr. Jose Luis (1948–1954, 11 letters) Mira, Enrique Alcaraz (1957, 1 letter) Mira, Henrique Alcaraz (1958, 1 letter)