Hi Richard. the chart I have was sent to me by Keith collins of Janesville, WI. It was prepared by W.C. Ruland. When I looked for Obadiah I found an Obadiah Ruland b. July 4, 1769 son of Jeremiah and Dinah (Johnson) Ruland.A note next to Jeremiah's name says his birth records gives him as Obadiah. This Jeremiah ( akaObadiah) was the son of Abraham Rolland one of the three brothers who came to USA from La Tremblade France.Name eventually turned into Ruland.