The Old Main Cornerstone Box collection consists of items taken from the cornerstone box in Old Main on the lower campus of Mankato State Normal School during its construction in 1869. The time capsule includes newspapers, business cards from local businesses, photographs, and university course offering catalogs. Additional items were added to the cornerstone box in 1923 and 1969.

The University Photograph Collection consists of photographs taken on behalf of Minnesota State University, Mankato and its predecessor institutions. These photographs are pictures of students, faculty, buildings, sculptures on campus and the occasional regional location. Many of these photographs have been digitized, and can be found in ARCH: University Archives Digital Collections, https://arch.lib.mnsu.edu.