I am a descendant of Erastus through his son Alva and his son Jack. I have a copy of Dugan history written by a granddaughter and am aware that it has some errors. I have verified and corrected some of the information about Erastus' father John, but am unable to verify the information about Erastus' grandfather, William.
Is there anyone who can give me a boost? I have found a William P. Dugan in the 1820 census for Greenville, Darke, Ohio, which is the right area, but I can't prove the connection. I've also found a Revolutionary War soldier of the same name in the same area, but again I can't prove he is the father of John.
Would love to have more information about these early Dugans!