Marcy married Thayer, Isaac on 9 Feb 1691 in Mendon, Worcester, Massachusetts, United States. Isaac (son of Thayer, Ferdinando and Hayward, Huldah) was born on 14 Feb 1664 in Mendon, Worcester, Massachusetts, United States; died in Dec 1754 in At Sea Near Cape Anne, Cape Arundel, Massachusetts, United States. [Group Sheet] [Family Chart]