Correspondence passed among investigators from September 1928 to February 1934. Letters to G.A. Pennock from Dr. Elton Mayo examined blood pressure, visits, generalizing mind for administration and societal changes; biological measures needs,...
Correspondence: J.W. Grant to Charles Kroff, acknowledging letter about the 11th Indiana Infantry Volunteers, near Edwards Station, July 14, 1885. Includes transcription.
Business card of W.C. Butler. Broom Corn, Calhoun, Missouri. On the back is...