George Schreyer, Sr. was born in the Conewago, Pennsylvania community.  He began his formal apprenticeship in the same area under either George Ungefehr or Nicholas Hachen in 1761. He apprenticed Phillip Sheets and is shown on Reading tax records as a Gunsmith.  He bought two lots in Hanover in 1775, living and working as a gunsmith there until his death in 1819.