1941, Hamilton, Ontario, Canada.
Cottrill attended Ontario Bible College, the University of Windsor, and Briercrest Biblical Seminary. He served in pastorates in Ontario, with the Associated Gospel Churches of Canada for 17 years, and taught Bible, music and other subjects in the college classroom in western Canada. He now lives in Saskatchewan, Canada. As a long time student of hymnology, he has contributed a considerable amount of background information for the Cyber Hymnal™. His father is Edward Cottrill.