Edward Coles was a Virginia slave-owner and the private secretary to President Madison in 1814 when he began a correspondence with Thomas Jefferson on the subject of slavery. Coles decided to resign his position, sell his plantation, leave Virginia, and then liberate his slaves. He moved to Illinois in 1819 with his slaves and liberated them there. After becoming governor in 1822, his efforts were critical in preventing Illinois from legalizing slavery in the state constitution.