George William Dom, Sr. B 2-6-1861 PA

I am trying to find out more information about George William Dom, Sr.- he is my greatgrandfather. He had an affair with my greatgrandmother, Julia (Keefer) Saylor which resulted in 2 children - Jesse and Lizzie Dom - born 1890.He evidently was married to Annie (Snyder) Dom at the time.He disappeared when my grandfather was just a few years old.Believed to have been from around the Berlin, PA area.Was in Wellersburg, PA when he met my greatgrandmother.Would appreciate any info you might have.