Sister Mary Arnold Tann, SSJ, is a native of Hamilton, Ohio. Her family moved to Erie, where she graduated from Villa Maria Academy. She received her bachelor’s degree in elementary education from Villa Maria College in Erie and earned certifications in school administration from Duquesne University in Pittsburgh and library science from Penn State Erie The Behrend College. Sister Mary Arnold entered the Sisters of St. Joseph from St. Andrew Parish in Erie in 1952 and made her final profession in 1958. Her ministry in education includes 30 years as a teacher at several diocesan schools, including Blessed Sacrament, Villa Maria Elementary, St. Peter, Our Lady of Peace, and St. Ann Schools in Erie; St. Bernard School in Bradford, PA, and as principal at Blessed Sacrament and Our Lady of Peace. In addition, for 24 years, she was an administrator in the Diocese of Erie’s Office of Education, where she served as Director of Teacher Personnel, Superintendent of Schools, and Vicar for Education. Following her retirement, she served as a volunteer at Saint Vincent Health Center in Erie.