[1][2][3][4] Garner was born in Norman, Oklahoma, the son of Mildred Scott (née Meek) and Weldon Warren "Bill" Bumgarner.
[3] Jack Garner played as a minor league baseball pitcher for a team affiliated with the Pittsburgh Pirates for eleven years.
"[3] Garner became a longtime member of the Professional Golfers' Association, played competitively, and later became a golf pro at[7] Oakmont Country Club in Glendale, California.
[4] Garner taught Dan Aykroyd, his brother's co-star in the 1996 film My Fellow Americans, to properly swing a golf club for a scene in that movie.
[3] Jack Garner entertained as the lead singer for the Coconut Grove nightclub, located in the now defunct Ambassador Hotel in Los Angeles early in his career.
[1] His roles included guest appearances on Love, American Style; The Bionic Woman; The Doris Day Show; Daniel Boone; The Green Hornet; Mannix; Medical Center and Murder, She Wrote.