A few more bits of trivia:
When I first started playing guitar and singing in public it was on Hal's traveling show. My cousin, Gene Hooper, another old time country singer married Hal's wife's sister. Her name is Flo, and they no longer perform due to health and age problems.

Hal and Betty recorded for RCA Victor a song the title of which escapes me. It's about finding an old guitar and writing a song about it.