The Underground Railroad Records chronicle the stories and methods of some 649 slaves who escaped to freedom via the Underground Railroad. William Still, [1] known as the father of the Underground Railroad, used his detailed documents regarding those he helped to escape in the Underground Railroad Records. While working with the Pennsylvania Anti-Slavery Society, Still worked with a fugitive slave who, he eventually realized, was his long-lost brother. He later then published a book, The Underground Railroad, based on the interviews he made with the fugitives he sheltered.