The Underground Railroad was maintained in the northern states to aid runaway slaves in their attempt to reach freedom in Canada. It wasn't a real railroad and it was not under the ground. It was called "underground" because it was a secret and "railroad" because it seemed to run regularly like a train route. Princeton was possibly the most important "station" in Illinois because of Reverend Owen Lovejoy. He was born in Maine and moved to Alton, Illinois as a young man. Owen studied for the ministry while living with his older brother, Elijah, who was the editor of an abolitionist newspaper....