Dr. Margaret R. Evans, Professor Emerita of Music at Southern Oregon University in Ashland, OR, is creator of the Sacred Organ Online Library database. She was a church musician for 45 years. She earned her D.M.A. degree at the Eastman School and served 4 years as AGO Vice President. Since she started buying organ music she has kept an index of pieces by hymn tune, and used this index every week throughout her church ministries.