Complex sentence: Healy sent his older sons to a Quaker school in Flushing, New York, when he heard of a new Jesuit College, the College of the Holy Cross in Worcester, Massachusetts, he sent his three oldest sons and Patrick to study there in 1844.
Split into simpler sentences: Healy sent his older sons to a Quaker school in Flushing, New York. When he heard of a new Jesuit College, the College of the Holy Cross in Worcester, Massachusetts, he sent his three oldest sons and Patrick to study there in 1844.