Notes:

According to the book "History of the Counties of Argenteuil, Quebec and Prescott, Ontario", by Cyrus Thomas (1896), Margaret was the daughter of Nathaniel Hazard treadwell, Esq., Seignior of Longueil, Quebec.

Margaret married Duncan DEWAR in Dec 1836 in Plattsburg, New York. Duncan (son of Duncan DEWAR and Catherine ROBERTSON) was born in May 1807 in St. Andrews, Argenteuil County, Lower Canada; died in UNKNOWN. [Group Sheet] [Family Chart]