After Pope Paul VI restored the permanent deaconate in 1967, the ranks of deacons began to include Native Americans. However, some Native deaconate students had difficulties in adjusting to classroom settings and textbooks. So in 1986, the Catholic Bureau financed a redesigned textbook series titled, "Builders of the New Earth: The Formation of Deacons and Lay Ministers" by the staff of the Sioux Spiritual Center of the Rapid City diocese. Since then, the series has been reprinted multiple times for the training of Native American deacons in the United States and Canada.