Our founding fathers were not Christians.

[HiPointDem]

42. in private letters Jefferson refers to himself as "Christian" (1803),[2] "a sect by myself" (1819),

an "Epicurean" (1819),[4] a "Materialist" (1820),[5] and a "Unitarian by myself" (1825).[6]

While many biographers, as well as some of his contemporaries, have characterized Jefferson as a Deist, historians and scholars have not found any such self-identification in Jefferson's surviving writings.

The Christian priesthood, finding the doctrines of Christ levelled to every understanding and too plain to need explanation, saw, in the mysticisms of Plato, Materials with which they might build up an artificial system which might, from its indistinctness, admit everlasting controversy, give employment for their order, and introduce it to profit, power, and preeminence. The doctrines which flowed from the lips of Jesus himself are within the comprehension of a child; but thousands of volumes have not yet explained the Platonisms engrafted on them: and for this obvious reason that nonsense can never be explained.[42]

"You are right in supposing, in one of yours, that I had not read much of Priestley’s Predestination, his no-soul system, or his controversy with Horsley. But I have read his Corruptions of Christianity, and Early Opinions of Jesus, over and over again; and I rest on them, and on Middleton’s writings, especially his Letters from Rome, and To Waterland, as the basis of my own faith. These writings have never been answered, nor can be answered by quoting historical proofs, as they have done. For these facts, therefore, I cling to their learning, so much superior to my own.[44]

No one sees with greater pleasure than myself the progress of reason in its advances towards rational Christianity. When we shall have done away the incomprehensible jargon of the Trinitarian arithmetic, that three are one, and one is three; when we shall have knocked down the artificial scaffolding, reared to mask from view the simple structure of Jesus; when, in short, we shall have unlearned everything which has been taught since His day, and got back to the pure and simple doctrines He inculcated, we shall then be truly and worthily His disciples; and my opinion is that if nothing had ever been added to what flowed purely from His lips, the whole world would at this day have been Christian. The religion-builders have so distorted and deformed the doctrines of Jesus, so muffled them in mysticisms, fancies and falsehoods, have caricatured them into forms so monstrous and inconceivable, as to shock reasonable thinkers, to revolt them against the whole, and drive them rashly to pronounce its Founder an impostor. Had there never been a commentator, there never would have been an infidel.... I have little doubt that the whole of our country will soon be rallied to the unity of the Creator, and, I hope, to the pure doctrines of Jesus also.[45]

I am anxious to see the doctrine of one god commenced in our state. But the population of my neighborhood is too slender, and is too much divided into other sects to maintain any one preacher well. I must therefore be contented to be an Unitarian by myself, altho I know there are many around me who would become so, if once they could hear the questions fairly stated. [6]

To the corruptions of Christianity I am, indeed, opposed; but not to the genuine precepts of Jesus himself. I am a Christian, in the only sense in which he wished any one to be; sincerely attached to his doctrines, in preference to all others; ascribing to himself every human excellence; and believing he never claimed any other....

http://en.wikipedia.org/wiki/Thomas_Jefferson_and_religion

IMO, a person who takes the trouble to write his own Bible which contains mainly the teachings of Christ is a Christian, i.e. a follower of Christ. Otherwise, why bother?