Ms. G.M. Ostler was the principal of Offinso College of Education in Offinso (the once capital of Offinso District is a town in the Offinso Municipality in the Ashanti Region of Ghana) from February 1955 to December 1959.
Ms. Dorothy M. Turnbull Feb. 1955-Dec.1959 
Ms. G.M. Ostler Jan. 1960-Aug. 1963 
