This collection is composed of photocopies, original documents, and photographs relating to the history of the Underground Railroad in Cass County, Michigan, in addition to research about families in the area. This research was collected by the Underground Railroad Society of Cass County, Michigan.

The collection covers a wide range of materials primarily focusing on social, legal, and political issues concerning the African American population in Cass County, Michigan from the late 1700s to the late 1800s. The collection discusses the development of Cass County, and its Quaker Underground Railroad networks. Particular points of interest include the 102nd Colored Unit of the Civil War, the Kentucky slave raid, Quakers operatives, Ramptown (named for the Ramp, a native wild onion), and community memory. The Lawson, Bonine, Vaughn, Bogue, East, and Allen families, along with their genealogies and community contributions, are mentioned extensively.