Named after Hall of Fame violin players John Columbcille Mulligan and Louis Quinn Sr., the Mulligan-Quinn Branch is based in Mineola, Long Island and serves the Long Island community.
- Chair: Niall Mulligan
- Vice-Chair: Denis O’Sullivan
- Secretary: Dolores Casey
- Treasurer: Patti Furlong
- PRO: Sean Quinn
- Auditor: Brian Gebhardt
- Irish Officer: Margaret Griffin
- Music Director: Sean Quinn
- Dance Director: Denis O’Sullivan
- Archive Officer: Bill McEvoy
- Branch Delegates to Regional Board: Fergal O'Halloran & Fiona Smyth
- Youth Officer: Liam Furlong
To contact the Mulligan-Quinn Branch, send an email to firstname.lastname@example.org.