Typewritten and signed letters, published articles, and newspaper clippings. Most of the letters were written to A. B. MacDonald of Kansas City, Missouri. Olive Dixon writes to MacDonald about the career of her husband, Billy Dixon, who was famous for fighting against Native Americans. Billy is noted for participating in the Battle of Adobe Walls in 1874. Some of the articles and newspaper clippings are by various authors but all deal with Billy Dixon's various activities.

Microfilmed copies of handwritten and typescripts of interview notes, correspondence, general notes, and lists. The materials relate primarily to the Indian wars of North America from 1866 to 1895. The original materials reside in the Ellison--Camp collection at the Denver Public Library. The items were initialy created and collected by Walter Mason Camp with some materials generated by Robert Ellison. Also included are typescripts of some of the items.