Her surname may have been Greer. Elsewhere her middle name is given as Rose. The name of her mother as Elizabeth Margaret Ross came from Tom Lavery's data at Rootsweb's Worldconnect.
See notes for Silas, in which pension mentions wife as Margaret.
Paul Remington's online genealogy says this couple had only two daughters.
Betsey is said to be of Chesterfield, CT, in "Landmarks of Monroe County, NY" by William F. Peck (1895), Part III, p. 80 - 81.