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  • Day, Mary

Sister Mary Day, O.S.F.

Associate Professor of Music; Music Department Chair

Department: Department of Music
Phone: 712-279-5567
Office Location: Heelan 179


Dr. Day holds degrees from Briar Cliff University (BA in voice) and the University of Iowa (MA and DMA in vocal performance). She has completed postgraduate studies at the American Institute of Musical Studies in Graz, Austria and the University of Texas. Included among her former teachers and coaches are Albert Gammon, Harold Stark, John Wustman, Robert Evans, and Romanian soprano Yolanda Marcoulescou.


Dr. Day has performed extensively in recital, opera and oratorio throughout the Minneapolis and Siouxland areas and been featured as a soloist with the Sioux City Symphony Orchestra and Sioux City Chamber Music Association. She frequently adjudicates for Iowa High School Music Association contests and has coordinated Briar Cliff’s Pre-All-State Choral Music Camp for more than twenty years.

A dedicated member of the Sioux City arts community, Dr. Day has served as a board member for the Sioux City Concert Course, Sioux City Chamber Music Association and the Siouxland Youth Symphony. Currently an officer in the Lewis and Clark chapter of the National Association of Teachers of Singing (NATS), her years of service in that organization have included multiple terms as Governor and President of the Iowa chapter and national board member.