Lookup Elias to Mary Salome 1760's in MD

In the records of the Evangelical Reformed church (German Lutheran), Frederick, MD. ; "Mary Salome, the wife of Elias Lefever died March 1798 at age 49." From the age of eldest heir, the marriage probably occured about 1765 to 1767. County records were during those dates were recorded either in Prince Georges Co.or elsewhere. It was probably recorded in some church. Salome was a name used by several Lancaster, PA families that moved to Maryland: Herr, Kemp, Zimmerman, Carpenter, Harmon / Harman, Lefever had association with Johnson, Baltzell / Balzel, Duvall, Maddart / Meddart, Ferree, Kerr.A lookup would be appreciated. Will share information.