Survived by Jessi Colter, his fourth wife, and seven children.
Was briefly a member of Buddy Holly's band as the bass player.
Was supposed to be on the flight that killed Buddy Holly, 'The Big Bopper' and Ritchie Valens. The Big Bopper was ill and wanted to fly rather than ride the tour bus, so Jennings gave him his seat on the plane.
When he was told by doctors to quit touring, he auctioned off much of his equipment. Less than a year later, though, he was back playing concerts.
Won a Grammy Award for a version of "MacArthur Park" recorded with The Kimberleys.
Worked as a DJ at a Lubbock, TX radio station.