Coach Paul Heaton took the reins from Brendan Sheridan after the tour, and before the cancellation of amateur sport due to COVID-19, were top of Division Two.

Official records show that in 1845 200 Irish immigrants were living in Daw Green, Westtown, Dewsbury.

In recent times, other local teams have overtaken Celtic in the league structure and in an effort to revitalise the club they switched to summer rugby in 2005, taking over the fixtures of the defunct Manchester Knights in the Central Premier.

In 2006 they applied for National League Three, finishing in 5th place and qualifying for the play-offs, where they lost to St Albans Centurions.

They also competed in the Northern Rail Cup, finishing behind Bramley Buffaloes, who qualified for the knock-out stages.