Here are some possibilities:
The Millennium File shows a George Leonard b.1686 England-d.Sadsbury,Chester,PA
https://www.familysearch.org/search/records/index#count=20&query=%2Bgivenname%3Ageorge~%20%2Bsurname%3ALeonard~%20%2Bany_place%3Aengland~%20%2Bany_year%3A1680-1690~