Methodism started as a reform movement within the Anglican Church. I thought that Roger Williams, the founder of Rhode Island, was considered a Baptist. Anyway, Baptists were just another flavor of Calvinist, and Calvinists were abundant in the colonies and among the signers of the Declaration.
Wrong. Baptists were originally disciples of Zwingli and Menno Simons. They split from the anabaptists, not from the Calvinists.
Roger Williams and the 11 or 12 men with him (including Benedict Arnold’s ancestor), did found the first Baptist church in America in 1638.
Baptists are now the most numerous Protestants, they are only outnumbered by the Catholics, Southern Baptists alone, are second in number only to the Catholics.