Headmasters
Rev. George Barton Brown, B. A.
Ordained, British, Ordained Rt. Rev. N. Hamlyn to priesthood in the Gold Coastst
Rev. Benjamin Philips Haines, M.A
Classmate of Hamlyn at Durham University ordained Diocese of Leicester, England and and recruited by Rt. Rev. Hamlyn
Hugh Hare
Trained Schoolmaster in England. Recruited by Bishop O'Rorke, successor of Bishop Hamlyn.
Rev. Robert Fisher, M.A. (Cantab)
Ordained, Recruited by Rt. Rev. O'Rorke Headmaster during the years of World War 1 (1914 -1918)
Rev. William Hutton Mensah | (1918-1924)
Ghanaian, One of the first Two Anglicans ordained by Bishop O'Rorke 1916. Though not a graduate, he was a decorated trained teacher. First Ghanaian head of SPG Grammar Scholar
Mr. Samuel Richard Stephen Nicholas M.A. Dip. Theol (Dunelm) | (1924-1929)
First Ghanaian Graduate to head the School. Old Boy
Rev. Alan John Knight, M.A. LL.B (Cantab)| (1929-1937)
Anglican priest, recruited by Bishop John Aglionby. Changed the designation of the head from Principal to Headmaster. Moves the school to new campus on Adisadel Hill
Mr. S.R.S. Nicholas, M.A. (Dunelm)| (1941-1943)
Classicist
Mr. A.N. Agbettor, B.A., Dip Ed (London)|(1943-1946)
Came to Adisadel from Mfantsipim School where he was a teacher of science
Rey. Canon W.G. Harward, M.A (Oxon) | (1947-1952)
Ordained. Came to Adisadel after a stint as Army Chaplain in Accra
Mr. Coleman Porter. Bsc Dip. Ed. (London) | 1953
Chemist, Acting
Mr. Arthur R.H. Dee, M.A. (Cantab) | (1954-1955)
Former housemaster of Marborough Public School, England. Recruited by Bishop Daly. Withdrew because of brain tumour and died after surgery
Mr. Albert Hammond, B.A. Dip Ed. (London) | (1955)
Santaclausian, Classicist
Mr. L.W.Fry, M.A. B.Sc. (Oxon) | (1956-1958)
Recruited from Achimota School, Chemist
Mr. T.J. Drury , M.A. (Cantab)|(1959-1963)
Also Recruited from Achimota School
Mr. Robert Thompson Orleans-Pobee, B.A. (London), M. Ed. (Springfield) | (1963-1974)
Santaclausian. Longest reigning headmaster of the school to date
Mr. Edward Augustus Jonah, B.A. (Legon) PGCE (Cape Coast)|(1974-1980)
Santaclausian
Mr. Raphael Kwasi Aryeetey, B.A. (Legon) | (1980-1990)
Santaclausian
Mr. J. E. K. Appiah-Cobbold |(1991-1995)
BA, PGCE
Mr. J.E.C. Kitson, SP.Sc, B.Sc. (UST) PGCE | (1995-2004)
Santaclausian
Mr. Herbert K.K. Graham (2005-2014)
Bsc., PGCE (UCC), Santaclausian
Mr. William Kusi-Yeboah 2014-2018
BA(HONS ) DIP ED MED (ADM) Santaclausian
Mr. Francis Agbedanu (2018-2019)
B.Ed Mathematics M.Ed (Basic Ed)