Henning's most notable role was as Betty Jo Bradley in the CBS series Petticoat Junction, which ran from 1963 until 1970.[1] She was only one of three cast members, along with Edgar Buchanan and Frank Cady, to remain throughout the show's entire run and appeared in all but three of the 222 episodes. She was billed for the first five seasons of the series as Linda Kaye. From Season 6 (Fall 1968) until the show was canceled, she was billed by her full name. In some episodes in later years, Henning and her television sisters (played by Meredith MacRae and Lori Saunders) sang in a trio, and she often sang duets with costar and future husband Mike Minor, who played Steve Elliott.[citation needed]
In 1968, Henning married Mike Minor, who played Steve Elliott on Petticoat Junction one year after the wedding of Betty Jo and Steve, but the couple divorced in 1973.[4] Henning married Leon Ashby Adams in 1994.