Looking for the Family of John Harmon of Indiana and Michigan

Do you have any, just any, information for John Harmon? John Harmon would of been a gt gt grandfather of my husband. John was married to Mary Kuntz according to family records. King Emanuel Harmon was s/o John Harmon. Was John born in PA then went to Ohio and possibly he moved on to I/T in O.K. around Enid. Thanking you in advance for any helpful information.

Maxine Davies