Five men joined the Catholic Church in the mid-1840s: a soldier, his bishop brother, a priest born a slave and two editors at odds with each other. For the next two decades they were in the thick of the battles of the era-Catholicism versus Know-Nothingism, slavery versus abolition, North versus South. Much has been written about the Catholic Church and about the Civil War. This book is the first in more than half a century to focus exclusively on the intersection of these two topics.