1.  F. Edward Wright.  1993.  Berks County Church Records of the 18th Century.  Vol. 3.  Family Line Publ., Westminster, MD (Broderbund CD-166).

PASTORAL RECORD OF REV. JOHN WALDSCHMIDT... Bapt. in Allegheny [Reformed] Church [Brecknock Twp.]... Anna Elizabeth, Ludwig Kopf's wife, bapt. January 17, 1784.  Not having received baptism in her infancy, being descended of Mennonites, and having earnestly requested the same, she received Holy Baptism, in the presence of witnesses, and was admitted to the Lord's Supper.