Materials cover Margery Stewart Hamstreet's time at Linfield College. Materials are primarily paper-based but also contain varsity letters and a cotton letterman sweater.

This collection contains artifacts that remain from the fraternity which were used for formal occasions such as the induction ceremony. Binders containing the Officer Manuals, alumni contact information and public outreach are contained at the end of the Collection. Correspondence between the president of the fraternity and the Mu Phi Epsilon region officer and interfraternity flyers, rosters, and notifications are contained in boxes 3 through 5. Of additional interest are the organizational necessities, including minutes, active member information, and register.