The Genealogy of Rev. Ezra Chase which I have does list an Elmer Chase, son of Obadiah Chase who was born in 1743 and was a soldier of the American Revolution from Dutchess County, N. Y. His son Elmer, was born in 1775; married July 15, 1798 to Eunice Cole; had five children; went to Tomnpkins County, N. Y. If this is your relative, I will be glad to send you a copy of the Genealogy if you will send me your mailing address.