'The Founders weren't Christians, they were deists', along with 'After 1964 civil rights legislation Republicans and Democrats switched positions on race' are staples of the Liberal interpretation of history, written in modern textbooks and taught by the national teacher's unions. Mott is simply parroting what he learned in school and did not question.
No, Mott is stating what he has read in many places.
"Historian Barry Schwartz writes: "George Washington's practice of Christianity was limited and superficial because he was not himself a Christian... He repeatedly declined the church's sacraments. Never did he take communion, and when his wife, Martha, did, he waited for her outside the sanctuary... Even on his deathbed, Washington asked for no ritual, uttered no prayer to Christ, and expressed no wish to be attended by His representative." [New York Press, 1987, pp. 174-175]"
"Paul F. Boller states in is anthology on Washington: "There is no mention of Jesus Christ anywhere in his extensive correspondence." [Dallas: Southern Methodist University Press, 1963, pp. 14-15]"
George Washington was such a devote christian that he didn't mention Jesus in his extensive correspondence??
Dixie, here is a quote from Washington that you might have missed:
""Religious controversies are always productive of more acrimony and irreconcilable hatreds than those which spring from any other cause. Of all the animosities which have existed among mankind, those which are caused by the difference of sentiments in religion appear to be the most inveterate and distressing, and ought most to be depreciated. I was in hopes that the enlightened and liberal policy, which has marked the present age, would at least have reconciled Christians of every denomination so far that we should never again see the religious disputes carried to such a pitch as to endanger the peace of society." "
- letter to Edward Newenham, 1792
Also, there is no record of Washington partaking of communion. In fact, he would get up and leave the church when the communion sacrament started.
"The closing years of his life, save the last two, were passed in Philadelphia, he being then President of the United States. In addition to his eight years' incumbency of the presidency, he was, during the eight years of the Revolutionary war, and also during the six years that elapsed between the Revolution and the establishment of the Federal government, not only a frequent visitor in Philadelphia, but during a considerable portion of the time a resident of that city. While there he attended the Episcopal churches of which the Rev. William White and the Rev. James Abercromble were rectors. In regard to his being a communicant, no evidence can be so pertinent or so decisive as that of his pastors.
Bishop White, the father of the Protestant Episcopal church of America, is one of the most eminent names in church history. During a large portion of the period covering nearly a quarter of a century, Washington, with his wife, attended the churches in which Bishop White officiated. In a letter dated Fredericksburg, Aug. 13, 1835, Colonel Mercer sent Bishop White the following inquiry relative to this question:
"I have a desire, my dear Sir, to know whether Gen. Washington was a communicant of the Protestant Episcopal church, or whether he occasionally went to the communion only, or if ever he did so at all. ... No authority can be so authentic and complete as yours on this point."
To this inquiry Bishop White replied as follows:
"Philadelphia, Aug. 15, 1835.
"Dear Sir: In regard to the subject of your inquiry, truth requires me to say that Gen. Washington never received the communion in the churches of which I am the parochial minister. Mrs. Washington was an habitual communicant.
... I have been written to by many on that point, and have been obliged to answer them as I now do you. I am respectfully.
"Your humble servant,
"WILLIAM WHITE."
(Memoir of Bishop White, pp. 196, 197)."
"In a standard Christian authority, Sprague's "Annals of the American Pulpit," written and compiled by Rev. Wm. B. Sprague, D.D., is a sketch of the life of Rev. James Abercromble, D.D. In this biographical sketch is to be found some very important evidence from the pen of Washington's other pastor, pertaining to the subject under consideration. I quote the following:
"One incident in Dr. Abercrombie's experience as a clergyman, in connection with the Father of his Country, is especially worthy of record; and the following account of it was given by the Doctor himself, in a letter to a friend, in 1831 shortly after there had been some public allusion to it: 'With respect to the inquiry you make I can only state the following facts; that, as pastor of the Episcopal church, observing that, on sacramental Sundays, Gen. Washington, immediately after the desk and pulpit services, went out with the greater part of the congregation -- always leaving Mrs. Washington with the other communicants -- she invariably being one -- I considered it my duty in a sermon on Public Worship, to state the unhappy tendency of example, particularly of those in elevated stations who uniformly turned their backs upon the celebration of the Lord's Supper. I acknowledge the remark was intended for the President; and as such he received it. A few days after, in conversation with, I believe, a senator of the United States, he told me he had dined the day before with the President, who in the course of conversation at table said that on the preceding Sunday he had received a very just reproof from the pulpit for always leaving the church before the administration of the Sacrament; that he honored the preacher for his integrity and candor; that he had never sufficiently considered the influence of his example, and that he would not again give cause for the repetition of the reproof; and
that, as he had never been a communicant, were he to become one then it would be imputed to an ostentatious display of religious zeal? arising altogether from his elevated station. Accordingly, he never afterwards came on the morning of sacramental Sunday, though at other times he was a constant attendant in the morning'" (Annals of the American Pulpit, Vol. v, p. 394)."
Plenty of info here:
http://www.infidels.org/library/historical/john_remsburg/six_historic_americans/chapter_3.html