D.S. Dix was a prominent Presbyterian and then United Church clergyman, whose work included serving as minister to Saskatoon's Westminster Church, as lecturer and professor at the Presbyterian Theological College – which became St. Andrew's College – in Saskatoon, as Principal of St.Andrew's College, and as President of Saskatchewan Conference.

Born in 1875, in Woodbridge (York County), Ontario, Dix trained as a teacher and taught for 6 years before enrolling in the Presbyterian Knox College (University of Toronto). He graduated with a degree in theology, in 1907, and pursued further studies in divinity at Glasgow University (Scotland), the University of Chicago, and Union Seminary (New York). He served as minister to St. James Church (Dartmouth, Nova Scotia), 1908-1910, to Chalmers Church (Guelph, Ontario), 1910-1913, and Westminster Church (Saskatoon), 1913-1919. Dix was also a lecturer and then professor at the Presbyterian Theological College, which became St. Andrew's College (Saskatoon), under its first Principal, Rev. E.H. Oliver. In 1935, Dix was appointed Principal of the College, after the death of E.H. Oliver.

In June 1946, Dix officially retired but remained associated with St. Andrew's College. He served on the United Church Board of Overseas Missions and as President of Saskatchewan Conference (1934-1935). He was Conference Archivist (1947-1953), and chairman of the Conference Historical Committee until his death, in 1956.