Archbishop Nelson J. Pérez was the principal celebrant and homilist at the Saint Patrick’s Day Commemorative Mass on Sunday, March 10 at Saint Patrick Parish located at 20th and Locust Streets in Philadelphia. Father Kevin Gallagher, Pastor of Saint Denis Parish in Havertown and Parade Chaplain, concelebrated the Mass. The procession was led by Joe Tobin and the Philadelphia Emerald Society Pipe Band, Bishop Shanahan High School Choir, and Cantor Karen Boyce McCollum. Learn more about the Philadelphia Saint Patrick’s Day Observance Association at (Courtesy Photos)