The Hahns started out in the Interbrew Junior "C" Hockey League,[5] and later joined the Central Junior C Hockey League.

While in the Central Jr. C league (now known as the Western Jr. C league), the Hahns won two Clarence Schmalz Cups as All-Ontario champions - 1963 and 1967.

[7] After some uncertainty in the Summer of 2013, the Firebirds ended up in the new Midwestern Junior C Hockey League.

In 2016 the eight Junior 'C' hockey leagues in Southern Ontario amalgamated under one banner as the Provincial Junior Hockey League.

The Midwestern Junior C Hockey League became the Doherty Division and were aligned in the Southern Conference with the Bloomfield division.