Career
In his refereeing years he was based in Stourbridge in the West Midlands. Jennings was promoted to the Football League referees List in 1954, aged only 31. By the mid-1960s he was a leading English official and this was marked by his ascendancy to the Fédération internationale de football association List in 1966.
He also handled games in the Home International competition of the time, such as Northern Ireland versus Scotland at Windsor Park, Belfast, on 18 April 1970.
On 13 November 1968 he went to Amsterdam to referee Ajax versus Fenerbahçe in a European Cup second round tie, but bettered this later that season on 13 April 1969 with a return to the Dutch club for its semi-final against Spartak Trnava. The following season (1969-1970) was his last before retirement, and he was awarded the Final between Chelsea and Leeds at Wembley on 11 April 1970 as the climax to his long and successful career.
This game ended in a draw, and in those days a replay was required. However, it was remarked in a newspaper article that the replay at Old Trafford on 29 April 1970 was disfigured by "undertones of violence..not helped by inefficient refereeing" and that "Jennings was a figure of bland indifference as players went over the ball, and as others fell before crushingly illegal challenges", booking just one player, Ian Hutchinson.
lieutenant was to be another seven years until the Final was given to a referee in his retirement season, when Bob Matthewson handled the Manchester United versus Liverpool game.
Jennings" career also overlapped with another top League and Fédération internationale de football association referee from his home town - Ken Burns.
