I have begun a surname project through Family Tree DNA to prove or disprove that Joseph St. Denis who was the spouse of Mary Shannon (1832 - 1905) was a son of Charles and Thérèse and a descendant of Jacques Denis dit St-Denis and Anne Gauthier. If you are a son of a son of a son (etc.)in an unbroken male line of descent from one of the sons of Charles St-Denis b. 1810 who married Adelaide Monet 6 Jul 1835; Georges b.1818 who married Adeline Beaudriat 19 Oct 1840; Louis b.1821 who married Bridget Campbell1 June 1850 or Joseph St. Denis b. 1826 who married Mary Shannon ca 1855, and have documentation, please contact me and I will provide you with a Y-DNA kit free of charge.