Senate Archives by Academic Year (from Senate website):
Oregon University System Archives
Shortly before OUS closed on June 31st 2015, they deleted all the content from their ous.edu website. Fortunately the Internet Archive had recently crawled it. Their June 19th 2015 archive is below. Some links may take you to dead ends, in which case you can search the Internet Archive for that URL here, and generally find the missing content by going to a page that was archived before 06/25/2015.
Historical Documents and Commentary
The University of Oregon Charter: An Episode In the Documentary History of The University of Oregon. Belknap, George N. (George Nicholas). http://library.uoregon.edu/ec/e-asia/read/belknap.pdf