School Administration Mrs. Catherine Nissen, Principal NissenC@ecsd.net Mr. D. Gauthier , Assistant Principal (Grade 10 coordinator) gauthierd@ecsd.net Mrs. C. Theberge,  Assistant Principal (Grade 11 coordinator) thebergec@ecsd.net Mr. D. Hatch ,  Assistant Principal (Grade 12 coordinator) hatchd@ecsd.net

Holy Trinity Catholic High School 7007-28 Avenue Edmonton, Alberta. T6K 4A5 Tel: (780) 462-5777 Fax: (780) 462-5820