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The ship was constructed by Marine Industries at their yard in Sorel, Quebec and was commissioned in October 1969. The ship was named in honour of Provo Wallis, a native of Halifax, Nova Scotia. Wallis was appointed Admiral of the fleet in the Royal Navy on 11 December 1877; the highest rank in the Royal Navy. The ship was registered in Ottawa, Ontario. The homeport of "Provo Wallis" was CCG Base Saint John in Saint John, New Brunswick.