Willard O. Eddy (1908-1993) played a pivotal role in transforming Colorado State University (CSU) from an agricultural college to a university. Eddy taught at CSU beginning in 1937 and later founded CSU's Honors Program and the department of philosophy. This collection consists of Eddy's correspondence, class papers, training manuals, receipts, photographs and ephemera accumulated primarily before his career at CSU.