I think there are are descendants of Hugh MacArthur that settled in Alexander, Maine. Contact John Dudley, President of Alexander-Crawford Historical Society, Pokey Road, Alexander,Maine 04694. My husband's grandfather was William Henry MacArthur of Bonshaw, PEI. His parents were Peter and Jane McQuade MacArthur. His grandparents may have been Donald and Mary McLean MacArthur. His gr-grandparents may have been Peter and Ann Nancy MacArthur.