Biographical and genealogical materials pertaining to the life of Charles L. Duncan, including a scrapbook, biographical notes from his deathbed, an obituary, a pamphlet, correspondence between family, a, Flat River Junior College yearbook, a receipt, and clippings. Materials are mostly undated but some range in date from circa 1942 to circa 2016.

Correspondence, color slides, military documents, publications, a scrapbook, and biographical material pertaining to the military service of Charles L. Duncan, a Southeast Missouri State University alumnus, during his service as an officer in both World War II and the Korean War.