Headmasters of Trinity
| Year | Headmasters |
| 1913 | Mr K T Henderson |
| 1913-1916 | Rev W G Hilliard |
| 1916 | Mr A Alston |
| 1917-1922 | Mr F H J Archer |
| 1923-1928 | Rev Dr G E A Weeks |
| 1929-1934 | Canon W G Hilliard |
| 1935-1937 | Rev P W Stephenson |
| 1938-1942 | Mr V S Murphy |
| 1944-1974 | Mr J Wilson Hogg |
| 1975-1996 | Mr R I West |
| 1996-2017 | Mr G M Cujes |
| 2018 - | Rev T Bowden |
