In what year was the team founded that won the 1956-1957 Irish League championship?
Glenavon F.C. Glenavon Football Club is a semi-professional, Northern Irish football club playing in the NIFL Premiership. The club, founded in 1889, hails from Lurgan and plays its home matches at Mourneview Park. Club colours are blue and white. Gary Hamilton has been player-manager of the Lurgan Blues since December 2011 following the resignation of Marty Quinn.
Crumlin United F.C. Crumlin United Football Club is an Irish association football club based in Crumlin, Dublin. Founded in 1967, the club is one of the biggest producers of football talent in Ireland. They are linked with Nottingham Forest. Their main rival is Cherry Orchard. The club currently has teams in the Dublin District Schoolboys League and Leinster Senior League. The club is managed by Martin Loughran, who is also on the Leinster Senior League committee.