According to the "Dexcendants of Jacob Nester 1761-1844" Mary M. "Polly" NESTER was probably born in Taneytown, Carrol Co. MD on 29 Dec 1793. Reference is made to the Trinity Evangelical Lutheran Church, Taneytown. I have 9 children. Your dates agree with mine except I did not have Shaffer's birthdate in Germany. If you'd like more, let me know.