Brownson was one of the best known American intellectuals of the nineteenth century. A native of Vermont, his religious affiliations shifted from Presbyterian to Universalist to Transcendentalist, before converting to Catholicism in 1844.
Orestes Brownson Society * Catholic Encyclopedia
The American Republic (amazon.com)
The American Republic (full text)
P. Carey, Orestes A. Brownson: American Religious Weathervane
Review of P. Carey, Orestes A. Brownson, by David J. Voelker
T. Ryan, Orestes A. Brownson: A Definitive Biography