Digilio, Dr. Antonio P. (1948–1957, 37 letters) Dimitri, Milan J. (1950, 2 letters) Dixon, H.B.F. (1953, 1 letter) Dixon, Henry H. (1948–1953, 2 letters) Dobbins, Mrs. H.T. (1948, 3 letters) Dodd, Mrs. F. (1948, 1 letter) Doelling, K.W. (1948–1949, 2 letters) Dollard, Marie I. (1948, 2 letters) Dornin, May (1950, 1 letter) Doubleday, B. (1957, 3 letters) Douglas, J. (1956, 3 letters) Douglas, M.S. (1956, 2 letters) Doutt, Richard L. (1955, 2 letters) Dow, Mrs. Fred W. (1952, 2 letters) Drake, Lucille (1951, 2 letters) Drury, Aubrey (1951, 1 letter) Dryander-Chateau, Edith (1951, 3 letters) DuBridge, Dr. Lee (1951, 1 letter)