Trevor joined the Club for the 1966/67 Track season.
He seemed destined to be a more than handy middle distance runner, but unfortunately died in a motor accident some months into his time with Collingwood Harriers.
The following tribute, written by then editor Graeme Young, was printed in the 1967 March/ April edition of The Magpie.
Never have I regretted more in having to put pen to paper for such a purpose as this; the untimely, tragic death of a club mate, Trevor Mitchener, in a car accident on Saturday March 25th.
There is little one can say to comfort Mr. and Mrs. Mitchener upon the loss of their son, but to know that that he was exceptionally well liked and respected, both as a person and as an athlete, may be of some consolation.
His potential as an athlete was outstanding and his temperament was perfect. We ‘bottled’ him up for the season for the B Grade finals and in his only A Grade appearance he broke two minutes for the first time in the 880yards and was a member of the 4×220 yards relay team which equalled the 29 year old Club record.
What an impression this one person, a member for only six months, made upon us all. I’m glad I had the privilege of making a friend of him, to have run with him, talk, joke and even have a glass of beer with him.
I am sure that there are many other in the Club who share these sentiments.