According to the February 4, 1939 issue of The Baptist Examiner, Gilpin had two radio programs each Sunday signing on the station every Sunday morning and signing it off every Sunday night (p. 1). Sparks is a collection of 13 radio sermons, preached on station WCMI between May 30 and August 22, 1937.https://mds.marshall.edu/gilpin_johnr/1000/thumbnail.jp
