Patrick Lydon was educated at Saint John’s Parochial School, Fitton Parochial School, Boston College Preparatory School, and Boston College, all in Boston, Massachusetts. He received his theological training at Saint John’s Seminary in Boston, and was ordained a Catholic priest on December 19, 1908. He served at Saint John’s Church, in Suffolk, Massachusetts, until he was commissioned in the U.S. Army on October 1, 1917. Serving as a chaplain with the 3d Division, American Expeditionary Forces during World War I, he was cited twice for gallantry. He was discharged on March 29, 1919, and then served as Assistant Pastor of Saint Francis de Sales Church in Roxbury, Massachusetts.



