Probably a pamphlet file maintained in one of Notre Dame's residence halls.
Drop File Collection (DRP), University of Notre Dame Archives (UNDA), Notre Dame, IN 46556
Pamphlets, catechisms, encyclicals, and pastoral letters concerning the lay apostolate, the Mystical Body of Christ, birth control, the Holy Ghost, heaven, forbidden books, worship, marriage and family life, education, parochial schools, conversion, the constitution, communism, college life, Church and State, Catholic Action, the Bible, atheism, the Blessed Virgin Mary, shrines, migration, immigration, refugees, the military, nuns, peace, the poor, prayer, the life of priests and brothers, secularism, sickness, suffering, sin, the social order, spiritualism, Ukranian Catholics, unionism, vocations, war and peace, and the world and Catholics.