I just read your brief note in the genealogy forum,and wanted to help in addressing your questions.
First,I knew your grandfather JFH vary well in fact he passed away at age 88 yrs. Second, if I'm not mistaken, your mother's name is Margret who married Harold Upstrom. Third, your grandmother's maiden name was Lago "possibly misspelled" and she was from Ogdensburg,N.Y.
By the way, reason I know this is that I'm your first cousin the son of your uncle Jimmy of Massena.
Hope you all had a great Holiday back home,we look forward to seeing you all this summer. Please give all our best.