Colleen Caroll was Garth Brooks' and Betsy Smittle's mom. She was a country singer in the 40's and 50's. McElroy-877 She had rising fame due to her voice, but keeping up with a singing career's demands while raising children would have been too difficult to do, so she left the spotlight.
Betsy Smittle ( Smittle-28 ) was Garth Brooks' half sister, and she was a bass guitarist for Garth as well as a backup singer for Gus Hardin and Ronnie Dunn.
Betsy was my third cousin once removed, related through my maternal grandma who was also born in Tulsa, Oklahoma (daughter of Edgar Vain Smittle Jr, Betsy's first cousin twice removed). Sadly, like many closely related cousins, I never got to meet her or at least say hi.
But years back, a relative (I think my great grandma or a great aunt? I can't remember) somehow got hold of her number. This was perhaps the 80's or 90's. She called Betsy and had an embarrassingly stupid, heated argument with her that "Garth really looks more like a Smittle!" Betsy's response: "No, he. is. not!"
Well, Colleen married Troyal Brooks in 1957, and Garth was born in 1962, so....