Just an interesting article I found about the religious beliefs of Thomas Jefferson, the first president in American history to attacked for his religious beliefs. This article is about the document called "Jefferson's Bible", a book he worked on from 1819-1820, after he retired from public life. Let me know if you guys can get the video to work.
Ah, the grandfather of us all.
Sadly, even Washington was sometimes attacked for being a deist (in those days, had a different meaning than today, but deists pretty much rejected the idea of a god heavily involved in individual lives. Adams was a Unitarian, which is pretty much the minimum religion one can have and not be an atheist...some have speculated that he was as much a non-believer as would be reasonable for a public figure in that era.
BTW, his version hasn't been secret for decades - you can buy it at Monticello and it has even been included in tourist ads for both Monticello and the local area.