On the other hand, there are several presidents who considered themselves aligned with a particular church, but who withheld from formal affiliation for a time.
James Buchanan, for instance, held himself allied with the Presbyterian church, but refrained from joining it until he left office.
Deism and the Founding Fathers Deism was a religious philosophy in common currency in colonial times, and some Founding Fathers (most notably
Thomas Paine, who was an explicit proponent of it, and
Benjamin Franklin, who spoke of it in his Autobiography) are identified more or less with this system.
Thomas Jefferson became a deist in later life, and
George Washington,
John Adams,
Alexander Hamilton,
James Madison,
James Monroe, and
John Tyler are often identified as having some degree of deistic beliefs. and a fifth (Thomas Jefferson) was an exponent of ideas now commonly associated with
Unitarianism. Unitarianism, the belief that God has a unitary nature, developed in opposition to
Trinitarianism, the belief that God is three persons in one (the Father, the Son and the Holy Spirit). In a letter to Benjamin Waterhouse in 1822, Jefferson said, "I trust that there is not a young man now living in the US. who will not die an Unitarian." William Howard Taft, a Unitarian, said in a letter to a friend, "I am interested in the spread of
Christian civilization, but to go into a dogmatic discussion of creed I will not do whether I am defeated or not. ... If the American electorate is so narrow as not to elect a Unitarian, well and good. I can stand it." While Abraham Lincoln never officially joined a church, there has been some research indicating that he may have had Quaker leanings. During his time in office, he had numerous meetings with Quakers and had investigated a supposed Quaker ancestry. The only other president with any association with a definitely
nontrinitarian body is
Dwight D. Eisenhower, whose parents moved from the
River Brethren to the antecedents of the
Jehovah's Witnesses. Eisenhower himself was baptized in the Presbyterian church shortly after assuming the presidency, the only president thus far to undergo such a rite while in office; and his attendance at
West Point was in sharp opposition to the tenets of the groups to which his parents belonged.
Nonreligious presidents There are some presidents for whom there is little evidence as to the importance of religion in their lives. For example, almost no evidence exists for
Monroe's personal religious beliefs, though this may be the result of the destruction of most of his personal correspondence, in which religious sentiments may have been recorded. As with claims of
deism, these identifications are not without controversy. No president has declared himself to be
atheist. ==Civic religion==