I have my family from the Greene County, NY area traced back to Nathan Dutcher (b. 1810-1820, not the one who went to WI) and his wife Isabella (b. 1801) and their children Mary Dutcher (Ackley), George Milo Dutcher and Stephen Dutcher.
I know a good bit about these folks.George Milo Dutcher was a temperance lecturer who published an autobiography and I've done a decent amount of other research as well.
BUT... I haven't figured out how they plug into the other groups.They clearly are related and I have some interesting clues, but nothing absolute.
I would be happy to trade info (as detailed as you can stand) by e-mail.