This link is to a different book than Harry Diehl's 1989 "Diehl-Deal-Dill-Dale Families of America. Vol. 1, Diehl Families of York and Adams County, PA"Your link is to Elias Henry Diehl's 1930 book "Diehl Families of America."The Johann Friedrich Diehl family is discussed in both books, but Harry's is more detailed and current.There will eventually be a vol. 2 to Harry Diehl's book that will update some information on this and other PA Diehl families. Ed Deal Researching PA Diehl-Deal-Teel, etc families.