My great-grandfather was Jerome S. Snure son of Lawrence and May Snure of Brooklyn, New York. Taken from an 1880 US Federal Census for Kings (Brooklyn) New York. It lists Lawrence (born in New York) and May his wife (born in Ireland) Also listed is another son besides my great-grandfather name Lewis.
In a 1860 Census I found Lawrence again listed at 22 years of age with a wife by the name of Mary 23 (born in Ireland) His occupation is listed as a builder and I believe that it is the same Lawrence that is in the 1880 census. I am also having trouble going back any further.