Donald and Daniel St.Cyr twin Lynn, MA

Hello, We are searching for my twin Uncles Donald and Daniel Born Lynn,MA 1948-1950 ish. Possible adoption in Nova Scotia, Canada. Catholic Charities may have been the agency, since my grandparents did alot of work for them. My aunt remembers her parents renting a house in Belevis Cove in 1957. She also remebers Digby County and more recently Kingston. Any information would be greatly appreciated. Thanks!