On 1 July 1950, 47-year-old Joe Abbott was killed instantly following a crash at Odsal Stadium in a league match against West Ham Hammers.
Jock Shead, a second rider was killed on the same night in a division 2 fixture.
Wimbledon Dons won the third and final stage and were therefore declared the 1950 National Trophy champions.
[8] First round Second round Semifinals First leg Second leg Wimbledon were National Trophy Champions, winning on aggregate 119–97, the trophy was presented by Vera Lynn.
[9] First round Semi final round First leg Second leg Wembley won on aggregate 108–107 Belle Vue Birmingham Bradford Bristol Harringay New Cross Wembley West Ham Wimbledon