Sarah was the wife of Peter Howard and the daughter of Moses Munsal.
"HOWARD, PETER [from the Dictionary of Canadian Biography] farmer, businessman, politician, jp, office holder, and doctor; b. c. 1771 in the American colonies, probably New York, fourth son of Matthew Howard; m. first Sarah Munsel (Munsall), and they had three sons and two daughters; m. secondly 17 Oct. 1833 Margaret Seaman, a widow, and they had no children; d. 24 Nov. 1843 in Brockville, Upper Canada."
"Peter Howard’s father was a farmer living in Pittstown, N.Y., when the American revolution broke out. Taking up arms with the British in 1777, he served with several loyalist corps, was employed as a spy, and was captured several times. After the war he settled in western Quebec with his family. In 1791 Peter petitioned the government for land as the son of a loyalist and was granted 200 acres. He owned property in several townships in the newly formed province of Upper Canada but made his residence in Elizabethtown Township, where his father and other family members lived."
Not related to my Howards in Canada as far as I know.