Jean-Baptiste Sir (son of Jean-Baptiste Sir and Marguerite Arpin).He married Marie-Anne Pivin on April 19, 1790 in L'Acadie, daughter of Lange Pivin and Marie-Joseph Dupury. More About Jean-Baptiste Sir and Marie-Anne Pivin: Marriage: April 19, 1790, L'Acadie. Children of Jean-Baptiste Sir and Marie-Anne Pivin are: