Not validated any of this but you might find it helpful:
"In the John Lewis King Genealogy, the unknown author writes that John Shedy came to America from Ireland. He attempted to enlist in the Civil War at age 14, and was not accepted. He changed his name to John King (which was his grandmother's maiden name), lied about his age, and successfully enlisted in the Civil War. Thereafter, the King name was used."
I have John Lewis King born Jul 1832 died 22 May 1912. He married Mary Devine about 1867, and they had ten children. Their son George Bernard married Annett Elizabeth Wettlaufer who was my grandaunt. Don't have any data prior to John and Mary. I do show that Mary Devine was born Feb 1844 in Ireland. Good luck, Bob