In 1917, Hughes was called up for service in the First World War. Rev. W. T. Pearce became Acting Headmaster until Hughes returned after the war. The college suffered a great loss in 1922 when Hughes became ill and died in Japan while on his way back to England on sick leave. In that year, the London Missionary Society transferred Rev. L. G. Phillips from Amoy to Hong Kong. He served as Headmaster for over two years.
