In 1945, Bill McCluskey, executive at WLW in Cincinnati, first learned of Bonnie Lou from a salesman he met on a train who “proceeded to rave about a young teenage country and western singer named Sally Carson who in his opinion was the best in the business..." McCluskey had the girl send a transcription of her singing to WLW. Impressed, he then requested a recording of her singing and yodeling "Train Whistle Blues." He hired her, however because KMBC owned the rights to "Sally Carson" had to change her name. She said "My real name is Mary Jo". He said "Not Country enough" and redubbed her as Bonnie Lou. She was promptly featured on "Boone County Jamboree", which became "Midwestern Hayride Country & Western Radio Program" broadcasts and live tours.