Hi, it looks like my sister in law descends from Mathias Beauclair and Rozanna Martel through their daughter Clara Margaret Beauclair Byron. Clara married Leo William Byron. My sister in law descends from Clara and Leo's only son Gerald (Jerry) William Byron 1928-2006. Gerald had several sisters, to date I list Lorraine Byron Mason 1928-2012, Madeline, and Phyllis Margaret Byron 1932-2006