A funeral Mass for Daughter of Charity Sister Patricia Anne Bossle, a former leader of The Seton Keough High School in Baltimore, was offered July 7 at the Basilica of the National Shrine of St. Elizabeth Seton in Emmitsburg. Sister Pat died July 1 at Villa St. Michael in Emmitsburg. She was 86. Born in Baltimore, Sister Patricia Ann graduated from Seton High School in Baltimore in 1957 and entered the Daughters of Charity April 2, 1958, in Emmi…