High Quality Content by WIKIPEDIA articles! The Mark O. Hatfield Library is the main library at Willamette University in Salem, Oregon, United States. Opened in 1986, it is a member of the Hatfield Library Consortium along with several library lending networks and is a designated Federal depository library. Willamette`s original library was established in 1844, two years after the school was founded. The library was housed in Waller Hall before moving to its own building (now Smullin Hall) in 1938.