William Thomas Keble M.A. (Oxford) was the founder of S. Thomas' Preparatory School, an eminent British scholar, author, educationalist, and an alumnus of Keble College, Oxford, which is named after his maternal great-uncle John Keble. He arrived in Ceylon (the name for Sri Lanka during the British colonial governance) in 1928 to join the staff of S. Thomas' College, Mt. Lavinia, during the tenure of warden Kenneth McPherson. He was the author of several books, including Ceylon, Beaten Track, A History of St. Thomas' College, Colombo, and Astrapani: A Romance of Sigiriya, a novel based on Sigiriya.