The research of Owen Muelder ’63, director of the Knox College Underground Freedom Railroad Center, served as a significant resource in the writing of Churchill’s book, which examines differing regional attitudes toward enforcement of the Fugitive Slave Act. Churchill interviewed Muelder in Galesburg several years ago and worked in the Seymour Library archives. They have also appeared together on conference panels in the United States and Canada to discuss their scholarship on the Underground Railroad.