Where we get that term "deist" in relation to our Founders is from historians over the last 75 years or so who have endeavored to minimize any connection to religion our Founders had in reality.
All of our Founders believed that it was not their job to preach religion, because they had tremendous respect for the individual human conscience. That is one reason why the Constitution begins with - "We the People."
They purposely minimized their own religions in order to present the religious freedom of "We the People."
I read the writings of Washington and Jefferson to come to my conclusions. Jefferson never went to church, but he was a believer in God. In that regard he’s like the majority of Americans. Washington occasionally went to church with his wife, but he too was not a regular church goer. BUT, he was an exceptionally moral man, as was Jefferson. You can not be a great leader without being a very moral person.