Sangaya was born in 1907 in
Blantyre near the mission. He was educated at the
Henry Henderson Institute in Blantyre. This was a facility named after a European missionary and run by the mission beside the church that
Henry Henderson designed and built in Blantyre. By 1929 Sangaya had qualified as a teacher. In 1930 the
Nyasaland department of education awarded him a first class teacher's certificate. He was the first local to be qualified to teach secondary students and for over twenty years he taught at the Blantyre mission. In 1962 he was elected to be the first African to be the General Secretary of the
Blantyre Synod of the Central Africa Presbyterian Church. ==Private life==