Complex sentence: The son of William Edward Vellacott (a Fellow of the Institute of Chartered Accountants who lived at Budleigh Salterton, Devon), he served as Headmaster of Harrow School from 1934 to 1939 and Master of Peterhouse, Cambridge, from 1939 to 1945.
Split into simpler sentences: The son of William Edward Vellacott (a Fellow of the Institute of Chartered Accountants who lived at Budleigh Salterton, Devon). He served as Headmaster of Harrow School from 1934 to 1939 and Master of Peterhouse, Cambridge, from 1939 to 1945.