In an exciting reinterpretation of the early nineteenth century, Leo Hirrel demonstrates the importance of religious ideas by exploring the relationship between religion and reform efforts during a crucial period in American history. The result is a work that moves the history of antebellum reform to a higher level of sophistication. Hirrel focuses upon New School Congregationalists and Presbyterians who served at the forefront of reform efforts and provided critical leadership to anti-Catholic, temperance, antislavery, and missionary movements. Their religion was an attempt to reconcile traditional Calvinist language with the prevalent intellectual trends of the time. New School theologians preserved Calvinist language about depravity, but...