He played more than 300 games in the top two divisions of the Football League over a 21-year career which was interrupted by the Second World War, and was the oldest player to appear for Birmingham City in a competitive first-team match.
Born in Habberley Valley, Kidderminster, Worcestershire, Jennings played for several local clubs before joining West Bromwich Albion as an amateur.
He then played for Kidderminster Harriers before turning professional with First Division club Huddersfield Town with a transfer fee paid of £600.
During the war he made 174 appearances for the club, contributing to them winning the wartime Football League South in 1945–46; he also guested for Nottingham Forest.
After football, he retired to the Wadebridge area of Cornwall where he and his son Anthony Jennings ran Little Dinham caravan park.