AVONDALE, Ariz. - St. Thomas Aquinas Parish, whose growth has vaulted it into one of the largest in the Diocese of Phoenix, celebrated 100 years as a Catholic community Sunday. Bishop John P. Dolan presided as the guest celebrant at 12:30 Mass, followed by a large outdoor party capping a day of festivities that began with a pancake breakfast hosted by Boy Scout Troop 64.