I discovered through Wm. Peterson's book Ancestors and Descendants of Garrett Peterson and Nancy Smock. We had already found the name of Harpert Peterson, as being the grandfather of John Griggs Peterson on family documents and from there discovered the research done by Wm. Peterson. It was such an exciting find and has been ever since I told my father that he was 'Dutch' not Scandinavian! Peterson was a name that started as Tomas Pieterse, son of Peter Garrabrant...on down the line and finally became Peterson. Annie Peterson Johnson