I'm related to these people through my 1g Grandmother Clara Louise Conant/Harpley. They moved through New York to Ohio and into Michigna. According to oral family history (not corrobrated), somehow they are related back to Roger Conant of Salem Mass. fame. Through out this time period 1800-1860, the sons and daughters kept moving West to new and cheap land and No, they are not illegal immigrants from Canada; although the Harpley line may be.
Hope this helps. If anyone has info on this line prior to Caleb and Magaret I would appreciate receiving it.