This file includes the following letters:

Schmoll, Hazel M. 9 June 1930

Schulz, Augusto G. 3 December 1936, 26 April 1937, 29 December 1937, 10 August 1938

Sharsmith, Helen K. 15 July 1938, 25 September 1938, 11 December 1938, 20 January 1939, 14 April 1939, 31 May 1939

Simms, S. 23 March 1933, 30 September 1935

Small, J. K. 10 July 1928, 28 January 1930

Smith, A. C. 16 June 1936, 13 July 1936, 1 September 1936, 7 October 1936, 17 October 1936, 27 October 1936, 6 November 1936, 21 December 1936, 18 July 1940

Smith, Huron H. 9 February 1928 (see Mathias, 7 February 1928)

Sprague, Trevor A. 31 May 1933

Standley, Paul 20 May 1929

Templeton, Bonnie 5 November 1935

Tharp, B. C. 15 February 1929 (see Mathias, 11 January 1929)

Thompson, J. W. 28 April 1931, 19 May 1931, 27 April 1937, 17 November 1937