ORIGINAL SITE OF ST. MARY'S COLLEGE - View this location on map In August 1863, Archbishop Joseph Sadoc Alemany, OP, opened St. Mary's College here with a faculty of two diocesan priests, four laymen, and two student teachers. In August 1868, at the invitation of the archbishop, Brother Justin McMahon and seven Christian Brothers took charge of St. Mary's. Mission St and College St, San Francisco, California Historical

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