English
Timothy D O'Sullivan Papers (OSU), University of Notre Dame Archives (UNDA), Notre Dame, IN 46556
Four lesson books containing O'Sullivan's writings; a small quantity of correspondence; notes; and a large collection (5 linear inches) of clippings compromising to Protestants.
O'Sullivan graduated from Notre Dame in 1858 and then went on to the University of Louvain in Belgium to study theology. He was ordained in 1865 and returned to the United States to work as a missionary.