Thereis St. Boniface which is German but the current church was built in 1923. Perhaps the parish is older and they had a church somewhere else. The address is 630 State Street, New haven, Ct. phone: 865-3365. St. Casimir's was Lithuanian but they closed it last year. ....don't know how you would get in touch with anyone there. It is on Greene Street in Wooster Square. That might be the place to look.