There is no particular area in the library, aside from the archives, where you will find primary sources shelved. You need to use creativity and insight to think about where to find primary sources for your research. Diaries, memoirs, and letters are possibilities; so are newspaper accounts of events and official documents.
If you need help, please don't hesitate to ask a librarian or visit the archives!
Photo credits
Gustavus Adolphus College - https://gustavus.edu/library/archives/images/P-02317.jpg
Walking by the Library - https://gustavus.edu/library/archives/images/alumni.jpg
