Today, the call letters WBKB are assigned to the CBS television affiliate in the Alpena area of northern Michigan, but for a short time in the 1930s they belonged to the first radio station to broadcast in southwest Louisiana. The letters reflected the names of businessmen Hillman Bailey, Henry J. Kilmer, and George J. Ber, who set up the station in the Ber Jewelry store in Rayne, several years b…