Doctrinaire Calvinists, as good "reformed Protestants" adhere to, among others, the Athanasian Creed. William Livingston, one of America's Founders, was born in 1723. I have written much about William Livingston's "primitive Christianity" that included, among other things, his personal rejection of official Presbyterian doctrine, even though ironically, Livingston was a member of the Presbyterian Club.
So a blogger takes issue my understanding here and here.
He argues Livingston a genuine orthodox Calvinist Presbyterian and notes 1. My
understanding of Livingston's religion comes from his writings in the
Daily Reflector written when Livingston was 27; 2. that "Livingston
never rejected the [A]thanasian [C]reed"; and 3. that if Livingston "was [A]rminian, it's a bigger scam than what [M]adoff did."
Well, Livingston rejected the Athanasian Creed in in November 1787 at age 64 (or almost) roughly three yeas before his death, just like he did when he was in his 20s.
That Livingston rejected the Calvinism of the Presbyterian Church with
which he was affiliated doesn't necessarily make him an "Arminian." The
distinction between the two could be a false dichotomy if presented in
an either/or sense.
But if Livingston being affiliated
with a church, even in a mighty leadership position, in whose official
doctrines he didn't believe makes him a "Madoff," that's not my judgment
to make. I will just note the record shows he did indeed reject the
official doctrines of said Presbyterian Church.