After the Civil War Archbishop Spaulding, then in charge of the diocese, saw the opportunity and the challenge of the church to meet the many needs of the freedmen who without spiritual guidance might morally retrograde. He therefore called for other workers to offer their lives as a sacrifice to a noble cause. In Italy at this time there was Father Barroti, who after having equipped himself for missionary work prepared to carry the Gospel message to the Chinese. In 1869, however, he was persuaded to go to the more inviting field of the freedmen in the United States. After some further instruction in English and other matters essential to the equipment for service among these people, he took charge of this Negro congregation in 1867. He immediately succeeded in securing the cooperation of the Negroes and the respect of the community. He passed among them as a man of Christian virtue and an apostle to the lowly. His following so rapidly increased that it was soon necessary to add wooden buildings to the original structure and to purchase additional property for a new building in 1869. To finance these undertakings he had the cooperation of Father Walters in St. Patrick's. The new structure, planned to cost about $100,000, was begun in 1874 and completed and dedicated in the midst of impressive ceremonies in 1876. At first it was thought best to place this church under the patronage of the Blessed Martin de Porrers. According to the regulation of the church law, however, whereas a chapel could be designated in honor of an ecclesiastic, a parish church could not be thus dedicated, but must be named for one of the Saints. It was then decided to name it for St. Augustine, Bishop of Hippo in Africa. Upon the completion of this structure the Negro Catholic congregation was given a new standing in the community and in the United States.