So he died about 8 months after this April of 1952 appearance.
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Hiram “Hank” Williams (September 17, 1923 – January 1, 1953)
—Wikipedia
“On April 23, 1952, Williams performed the song [I Can't Help It) on the Kate Smith Evening Hour along with Anita Carter, the youngest daughter of Ezra and Maybelle Carter and sister to June Carter Cash.”
According to the Burns’ film, Williams was quite erratic in his performances during the last few years of his life - often forgetting the words of songs and occasionally not showing up for performances at all - once Minnie Pearle was assigned to “babysit” him between the first and second shows one evening so he didn’t wander off in between (she sang “I Saw the Light” to him to keep him occupied - he told her “Minnie, there ain’t no light for me”) - yet when he was away from the booze and drugs he still could produce amazing performances like the one you’ve posted......