A missionary to the German immigrants to the United States, but serving all God's people, Francis Xavier Seelos entered the United States around the time of Civil War, the "Know Nothing" Anti-Catholic movement and the rise of American Nativism in the US Church.
Initially an associate pastor with St. John Neumann in Philadelphia, he soon rose to a prominent leadership position in the Redemptorists and the Church, even declining nomination to become a bishop.
He served as a tireless missionary in parishes throughout the states, finally succumbing to Yellow Fever at the age of only 48. Many healing miracles were reported both before and after his death.
He was beatified by St. Pope John Paul II in 2000.