Whether all the information you listed was completely accurate or not, the fact remains that the founding fathers took great risks to conceive this nation and sacrificed a great deal during their lifetimes that we may live in freedom. We now know that it all turned out ok but they didn't know that then. We owe them all a great deal and today is a wonderful day to remember that.
P.S. Did you know that Thomas Jefferson and John Adams died on the same day - July 4, 1826 - 50 years to the day after they signed the Declaration of Independence? Interesting tidbit.