ISO information on Augustus Holderbaum and interested in a book

I am interested in any history on Augustus Holderbaum who married an Elizabeth Helsel. Elizabeth was possible born in the 18??'s.I would take from family information it would be in either Napier Twp. Or Bedford County, Pa. I may be wrong on this. I am interesting also in a book on the History of the Holderbaum family. I don't know when it was published. But Elizabeth is mentioned in the book is all the leads I have. If you see a previous post by me here. You will find I am trying to find information on a Captain Von Holderbaum that has been mentioned in the family. Thanks