Schroeder, C.A. (1948, 1 letter) Schroeder, Dr. H.H. (1951, 3 letters) Schules, Dr. Ricahrd Evans (1951, 2 letters) Schultz, Dr. Alarich R. (1949–1950, 2 letters) Schweinfurth, Dr. Charles (1950, 1 letter) Schwietzer, C.H. (1956, 1 letter) Scofield, Dr. H.T. (1957, 2 letters) Scratch, Walter (1940, 1 letter) Seibert, Russell J. (1955, 3 letters) Seifriz, Dr. William (1952, 3 letters) Selling, Dr. Olof H. (1950–1957, 10 letters) von Sengbusch, Dr. R. (1947–1950, 11 letters) Senn, Dr. Harold A. (1949–1956, 13 letters) Setchell, W.A. (1933, 1 letter) Shade, Mrs. S.L. (1949, 2 letters) Sharp, M.L. (1957, 2 letters) Shattuck, A. Milo (1948–1953, 11 letters) Sheehan, Rev. R.J. (1949, 1 letter) Shepherd, Harry W. (1951–1954, 2 letters) Sheridan, Mrs. R. (1955, 2 letters) Shipaugh, Mrs. William A. (1951, 1 letter) Short, Ernest H. (1950, 5 letters) Shultis, Dr. Arthur (1956, 2 letters) Silberschmidt, Dr. Karl Martin (1950, 3 letters) Silverfoot, E. (1949, 3 letters) Simmonds, John K. (1952, 1 letter) Simmons, William P. (1951, 2 letters) Sisler, J.A. (1945–1950, 50 letters)