William Still was an American abolitionist, writer, businessman, and a prominent conductor of the Underground Railroad, a vast, loosely organized network of people and changing routes that guided enslaved Africans to freedom.

He kept meticulous records, carefully hidden during the Civil War and later published to help family members find each other. Between 1853 and 1861, he assisted 995 men, women, and children in escaping slavery. Here are their names.