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They were behind bars in places like Huntsville, Brazoria, and Sugar Land, but their music was often heard around the county on a radio show called Thirty Minutes Behind the Walls, which aired for many years on WBAP radio in Fort Worth.
Their stories are told in the book called Texas Jailhouse Music: A Prison Band History by Caroline Gnagy.
Back in 2016, she told Michael Hagerty about the prison music initiative, which started as a public relations tactic.