[1] After graduating from Savannah High School in 1910, he studied for the priesthood at St. Bernard's Seminary in Rochester, New York.
[1] Walsh was ordained a priest in Georgia for the Diocese of Savannah by Bishop Benjamin Keiley on January 15, 1916.
[1] On June 20, 1927, Walsh was appointed the sixth bishop of the Diocese of Charleston by Pope Pius XI.
[3] During his 22-year tenure in Charleston, Walsh erected 25 churches, four hospitals, and two vacation camps for youth.
[2] In 1951, U.S. President Harry S. Truman appointed Walsh to the Internal Security and Individual Rights Commission, formed by the federal government to investigate subversive activities.