His brother Mathew Coy also came to Massachusetts as an indentured servant.
(1) David Cressy, Coming Over: Migration and Communication Between England and New England in the Seventeenth Century (Cambridge: Cambridge University Press, 1987), 61-62, citing Essex Courts, Vol. 1, pp. 381-382; Richard A. Rutyna, Richard Coy of Essex County, 1625-1675: A Biographical Sketch, Essex Institute Historical Collections, 104 (1968), pp. 75-79.