As of Wednesday afternoon, the Rev. Sam Young had seen three popes on American soil. This week, the pastor of St. Paul Catholic Church, in Ellicott City, attended Pope Francis' Mass outside the Basilica of the National Shrine of the Immaculate Conception in Washington. In 2008, he attended Pope Benedict's Mass at Nationals Park in D.C.; and in 1995, he attended Pope John Paul II's Mass in Baltimore. On all three occasions he was a concelebrant.