In 1918 the school principal of Trinity College, Rev. Alexander Garden Fraser (1873-1962) commenced planning for the construction of a chapel, identifying a site within the school grounds. Rev. Fraser was the principal of Trinity College between 1904 and 1924. He played a pivotal role in the development of Trinity College from a small provincial school to a national college. The vice principal, Rev. Lewis John Gaster (1879-1939), who joined the school in 1910, a qualified architect and draughtsman, prepared the plans for the chapel. Gaster went on to become the principal at King's College in Uganda.