The 1950s was a boom time for the Catholic Church in America, with large families of devout members providing at least one son or daughter for a life of religious service. Boston was at the epicenter of this explosion, and Bill Manseau and Mary Doherty - two eager young parishioners from different towns - became part of a new breed of clergy, eschewing the comforts of homey parishes and choosing instead to minister to the inner-city poor. Peter Manseau's...