I don't remember where I found this on the Internet, but there was a John Goodar born in France 1785. He died January 12, 1847 in Richmond, Michigan. He married Irena Hooper. She was born in Brooklyn, New York.
The person who posted this information thought that he might be the brother of Francis Goodar. Francis was also born in France in 1798. He died in Pennsylvania. He married Malic Rebecca Carr.