Henry Grady Weaver (December 24, 1889 – January 3, 1949) was the director of Customer Research Staff for General Motors Corporation, and shown on the cover of the November 14, 1938 issue of Time magazine. He is credited with developing the use of the survey questionnaire to investigate customer preferences for design features in cars. (From Wikipedia)
More about Henry Grady Weaver:Books by Henry Grady Weaver:
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Weaver, Henry Grady, 1889-1949: The Mainspring of Human Progress (1953 edition) (PDF and Epub with commentary at mises.org)
Additional books by Henry Grady Weaver in the extended shelves:
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Weaver, Henry Grady, 1889-1949: The mainspring of human progress. (Foundation for Economic Education, 1953), also by Rose Wilder Lane (page images at HathiTrust)
Find more by Henry Grady Weaver at your library, or elsewhere.