Here is a recording of a “This is Jazz” program by Smitty. The tape starts a bit rough. I haven’t found the closing words and song. By mention of the recent passing of W.C. Handy (d. March 28, 1958), I’d place this program in spring of 1958. The recording includes station identification as KLAN 910, and also has a Safeco Auto Insurance promo.
(Listening time: 35:58)