Career
Priestley started his career with Street Johnstone in Scotland before moving South of the border to join in May 1920 at the age of nineteen. He spent eight years with the West London club until 1928 when he signed for Grimsby Town, who would go on to be promoted to Division One the following year. Priestley didn"t make his debut for the Blues until a year after he joined the club, playing in a 0-0 draw away at Blackburn Rovers on the 2nd May 1921.
He wouldn"t make another appearance for until Boxing Day 1922, missing the 1921/22 season completely.
The 1923/24 season saw Priestley make 42 appearances for, scoring twice in victories against Middlesbrough and Manchester City, though he was unable to help the London club stave off relegation to the old Division Two. In the following season, Priestley would again feature heavily for as the side finished 5th in Division Two, missing out on promotion by 10 points.
The 1925/26 campaign proved to be more fortuitous for the Scottish Half Back as he quadrupled his goal tally from the previous year, despite making only six more appearances in all competitions for, helping them to a 3rd-place finish in the league come the end of the season. Priestley bettered his scoring record the following season, having his most prolific year for the Blues with 7 goals in 44 appearances.
This would be "s only victory after January 1928 with Priestley in the team as the side finished 3rd in Division Two, missing out on promotion once again.