海軍元帥
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.