Yes, I see that the Dave who posted a GenForum message dated 21 Feb 2010, to which you are now responding, didn't leave his Email address.To identify him from my records here, he is David Wayne Chamberlin, born 8 Jan 1972, Syracuse, NY, son of Clinton Adams Chamberlin, b. 19 Apr 1944 and his wife Barbara Anne Boden, b. 1945, and grandson of Louis Clinton Chamberlin, b. 17 Apr 1911, Malden, Middlesex Co., MA, died 2004.Louis was son of Albert Hall Chamberlain and Marion King Dillingham.Albert was brother of the Edwin and son of the Calvin Jonas Chamberlain that you wrote about.I corresponded with Dave, 15-17 March 2010, at which time his Email address was .Hopefully you can still contact him.Calvin Jonas Ch'n was born 23 Sep 1845, Woodhouse, Canada, died 1898; married Anna Maria "Mary" Hoffman, 14 May 1873, Port Dover, Ontario, with 4 children listed for them.He, in turn, was son of Jonas Chamberlain, b. 27 Jun 1791, Westford, Middlesex Co., MA, d. 5 Sep 1870, Port Dover, Ontario, and his second wife Elizabeth Dennis, b. 26 Apr 1821, NY, d. 17 Mar 1902, whom he married, 22 Jul 1844.The ancestral line of descent is listed as Thomas (1764-1842), who settled in Cooper or Plainwell, Kalamazoo Co., MI; Ephraim (1725-after 1800); Samuel Jr. (1685-1769), Samuel (1645-1722); Thomas (1614/15-1700), of Chelmsford, Middlesex Co., MA, one of the five original Ch'n immigrant ancestors in early New England.Jonas (1791-1870) is listed as #LN6913 in the formally prepared Family Group Records of the late Ch'n genealogist, David Conrad Chamberlin, Sr., of Salt Lake City, whose records I use here, and which you can view and download from the website for the World Chamberlain Genealogical Society online.I advise you to review this FGR, and those for each ancestor on back to Thomas(1), and add this information to your lineage there.Please contact me via Email once again after you have reviewed these records, if you wish discuss whatever additional information I might have in my research notes here, including reference to my 2010 correspondence with David Chamberlin.