I can't answer your question specifically, but Garfield did create a novel proof of the Pythagorean Theorem.
http://en.wikipedia.org/wiki/Pythagorean_theorem#Garfield.27s_proof
Haha, touche!
I guess when I use the term "founding fathers" I tend to think not only of the "big names" who signed the Declaration and created the Articles of Confederation/Constitution, but also the individual soldiers who fought in Washington's Army. To that end, I don't think they were all the most educated people in the world, but they certainly could recognize corruption and had the will to act.