Costello, Rev. Charles A. Episcopate of Rt. Rev. J.M. Young, Bishop of Erie, Pennsylvannia 1854-1866 unpublished MA Thesis, 1951. Subject: Young, Rt. Rev. J.M. (Bishop of Erie). Subject: Erie, Diocese of. Subject: Notre Dame, University of-Theses and Dissertations, MGEN M5055. General Collection, GEN. University of Notre Dame Archives. https://archivesspace.library.nd.edu/repositories/2/archival_objects/1098917 Accessed February 26, 2026.