Due to his birth date, I thought you should know about the following George Overholt who is on an Ontario line:
On page 310 of "The Overholtzer Book" there is a George William Overholt Apr 3, 1830 - June 22, 1891 who married Lanah Jane Reece.No children are listed.
George's parents were Abraham Overholt 4/4/1784 - Jan 13, 1866 md July 1812 Margaret Warner 3/3/1792 St. Davids - Dec 11, 1859.Both bur Overholt Cem. Fonthill
Abraham's parents were Abraham Overholt 1746 PA - July 24, 1840 Thorold Twp. md Elizabeth ? 1752 USA - Nov 8, 1836.Both bur Overholt Cem. Fonthill.There is more on this Abraham in the book if he is your ancestor which I can copy.
Another suggestion would be to contact the Overholser Family Association that published the book as they continue to collect additional firstname.lastname@example.org