ROME — Alphonse “Alphy” Poulin, the 11th of 14 children raised by the late Merilda and Lucien Poulin on Arsenal Street in Augusta, has returned home to Maine following a career in dance and choreography that took him around the world and back. Poulin recently retired to Rome after 15 years as ballet master and faculty member at the prominent Juilliard School in New York City, where he taught dancers who are now taking the stage at performance venues around the world.