Complex sentence: He was ordained priest in Pittsburgh on June 4,1879 and he was installed as coadjutor bishop on February 24,1903, and became the fifth bishop upon the death of Bishop Phelan in 1904.
Split into simpler sentences: He was ordained a priest in Pittsburgh on 4 June 1879 and was installed as coadjutor bishop on 24 February 1903. He became the fifth bishop of Pittsburgh upon the death of Bishop Phelan in 1904.