This is Dr. James Robert Maxwell.  This line is very well documented in "The Descendants of John Maxwell, 1712-1795" by Bill and Dottie Millis, 3433 Hawthorne Court, Barltesville, Oklahoma, 47006.  1997, US/CAN 929.273  M 451 mw.es I have an extensive database and would share information.  To my knowledge no male from this line has had DNA testing done.  Would be helpful to others looking for common ancestor.