I borrowered the book "From Nova Scotia Immigrants to 1867" by Leonard H. Smith Jr. and Norma H. Smith and they list: Thomas Kerwin, tailor; b co. Waterford, Ireland; bur. Halifax 12 July 1821 ae. 40; Halifax June 1827 on Cumberland from Waterford, Ireland (327:61) Reference 327 refers to "Finding Our Irish", Nova Scotia Historical Review 6 (1986):1:41-62