Fanny Allen
Frances Margaret Allen was the first New England woman to become a Catholic nun. The daughter of Revolutionary War General Ethan Allen, she converted to Catholicism and entered the convent of the Religious Hospitallers of St. Joseph in Montreal in 1811.
Born on November 13, 1784, Frances Margaret Allen was the eldest child of the American patriot Ethan Allen and his second wife, Frances Montresor Brush Buchanan Allen. She was born in a house built by her father on the side of the Batten Kill in Sunderland, Vermont. Her family moved to various settlements in Vermont in her youth, and Frances, who was called Fanny, spent her childhood in Burlington, Westminster, and Swanton.
Source: Wikipedia