Dear Ms. Gunn,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located Publicity Files, 1936 - 1938 in the Records of the Natural Resources Conservation Service (Record Group 114); General Correspondence Files , 1927 - 1951 in the Records of the Bureau of Entomology and Plant Quarantine (Record Group 7) that includes the file Radio Broadcasts; and Correspondence and Cookbooks Related to Aunt Sammy's Radio Recipes, 1931 - ca. 1954 in the Records of the Bureau of Human Nutrition and Home Economics (Record Group 176). For more information about these and other holdings of the National Archives at Kansas City (RM-KC) please email firstname.lastname@example.org.
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We hope this is helpful. Best of luck with your research!
Not sure exactly what you are seeking but this is interesting.
During his career, William Jardine compiled several personal scrapbooks and a number of his clippings from newspapers and magazines detail the extension radio project at Kansas State. Jardine's files are housed at the Library of Congress ("Every Kansas Farmstead," 1924; "Farmers Now Go to College," ca. 1924; "This College of the Air," ca. 1924; "Farmers Attend Radio College," ca. 1924). Archival records of the National Broadcasting Company housed at the Wisconsin; Historical Society Archives provide insight into NBC's early contacts with the USDA,