93.7 KISR - KISR 93
KISR 93.7 – Ft. Smith, AR – 1/21/97
According to this page, KISR debuted on this date (August 16) in 1971. This is a sample of the station from early 1997.
Unless I’m mistaken, the station still has the same local, independent ownership today as it did 40 years ago.