The Lass Center for Minnesota Studies has an extensive collection about Minnesota. It is open all hours the library is open.
Examples of material available include:
- Biographies
- Genealogies
- Church Histories
- County Histories
- City Directories
- City Histories
- Minnesota State University, Mankato Yearbooks (Katonians)
- Minnesota State University, Mankato Bulletins (Volumes prior to 1925 include list of graduates and attendees)
- Minnesota Newspapers (on microfilm)
- State and Federal Census Records (on microfilm - 1857-1930)
All items in the Lass Center can be found in the library catalog.