Mark, I descend from Ludger Balthazard's oldest sister, Julia, who married Francis Brunelle. I've tracked the Balthazard family back to the mid-1700s and would be happy to share what I have. I'd also be very interested in learning more about the descendants of Ludger. I have birth dates for 9 children of Ludger Balthazard and Lucy Pillard, three of whom died as infants or young children. However, I don't recognize Cora - perhaps this was not her baptismal name? You are correct that Treffle and Ludger were brothers. Looking forward to hearing from you! Lynn