Genealogy

I am looking for a marriage record in New York for Thaddeus Newell to a Rachel ? 1760 to 1785 around Columbia Co., NY.
They both died in 1830 Brecksville, Cuyahoga Co., Ohio. He served in New York Continental Army.
Daughter Elizabeth Newell m. 1799 Ezra O Brown in Columbia Co., NY.
Any info appreciated.
Diane Webb
dwebb8@cox.net