You can contact the church's Parish Office in several different ways. The physical address is 214 W. Beverley Street, Staunton, VA. The mailing address is P.O. Box 208, Staunton, VA 24402-0208. The phone number is (540) 886-9132, and the e-mail address is firstname.lastname@example.org
The following information is from their website:
"In the Parish Office---
The parish office maintains member registers from 1850 until present day of births, baptisms, confirmations, marriages and burials. Please call to make an appointment to view these materials"
Good luck in finding what you want!