Reference: British Aviation - The Barnwell Brothers

Frank and Marjorie Barnwell had three sons who all lost their lives in the Second World War:

    Flight Lieutenant Richard Antony Barnwell, RAF of No. 102 Squadron RAF died aged 24 on 29 October 1940.
    Pilot Officer John Sandes Barnwell, RAF of No. 29 Squadron RAF died aged 20 on 19 June 1940.
    Pilot Officer David Usher Barnwell DFC, RAFVR, of No. 607 Squadron RAF died aged 19 on 14 October 1941.