This chapter examines Harriet Beecher Stowe’s depiction of the separation of church and state in her regional New England novels, Oldtown Folks and Poganuc People, both set in the early republic. It argues that while Stowe’s evangelical vision of religion led her to praise the purification of religion from politics, her simplified story of disestablishment enables a more complicated intertwining of Christianity with democracy. Drawing on family lore and regional history for both novels, Stowe criticized the New England Federalists and Calvinists of her father Lyman Beecher’s generation for treating religion as a political tool, but she also credited them with safeguarding Christianity from the forces of secularization that she associated with the French Revolution. Her novels thus seek to adapt state religion by depicting sites of intense, irrational belief (Spiritualism in Oldtown Folks, Christmas wonder in Poganuc People) that leaven Federalist and Calvinist rationalism with enchantment for the purpose of democratizing Christianity. Stowe’s historical progress narrative depicts Christianity made more democratic when it is seized from the hands of elites and politicians, yet this shift transforms it into a more powerful tool for regulating society. Strengthening the moral efficacy of religion, Stowe’s vision depicts a weakening of the state and public polity, because in Stowe’s libertarian New England history, democracy of the “people” and the “folk” is reassigned to Christianity in the private sphere.