Added a page in the Roll of Honour for William in the ‘Site Memorial’ section:-
http://www.roll-of-honour.org.uk/o/html/o_flynn-william-irving.htm
Information
KEW:- WO 392/25, WO 345/38, WO 361/1979, WO 361/1954, WO 361/2196, WO 361/2167, WO 361/2167, WO 361/2062