A quick search here on the site has

John George Lee Sr's parents as:

George Lee 1758 - ?
Martha George 1755 - 1850

There's a James Lee listed as George's father, but no mention of a mother.

Martha's parents are listed as Matthew George 1735 - 1781 and Susannah King 1739- 1795

This list Martha as living to 95. While it's certainly possible I'm always a little skeptical. Occasionally people mix up children and grandchildren and get the wrong date of death. The entry I found also didn't have any associated sources so I would double check this information. Hopefully this gives you something to get you started.