The Steven K. Madsen collection on Blacks in Utah (1879-1980) contains photocopied materials about early African Americans in Utah, especially about Green Flake and the community of Union. Included are clippings and book excerpts related to Green Flake, property records for Union, records of Union Fort Cemetery, and reminiscences by relatives of Green Flake. Also included are clippings and other materials on Black people in the LDS Church (1965-1979).

The Steven K. Madsen newsletter collection (1996-1998) contain copies of the Spanish Traces, published by the Old Spanish Trail Association. Steven K. Madsen is an historian and the author of several books about the history of the settlement of the Intermountain West.