Content warning: The illustration and description of the mural (in Box 1, Folder 3) include inaccurate, derogatory, and/or offensive depictions of people indigenous to the area.

The Mildred Duncan Warnecke Collection predominately contains student group photographs, photo albums depicting family life, sports and leisure activities, rural scenes, and Normal School students; newsletters and student activities of the class of 1907, and reunion materials related to Gamma Sigma Nu. The collection also contains copies of The Seal yearbook and The Signal newspaper. It is unclear how Warnecke came to acquire the photo albums created by Louise Woodruff Bush, although Bush was an older Gamma Sigma Nu member, and Warnecke was very active in the sorority, attending the annual reunions. The collection spans 1906-2000, with most of the materials falling between 1906-1969.