Fergus died 22nd March 2018, he now has a page in the Roll of Honour, ‘Site Memorial’ section. Thanks Keith for letting me know:-
http://www.roll-of-honour.org.uk/a/html/anckorn-fergus-gordon.htm
Information
KEW:- WO 392/23, WO 361/2172, WO 345/22, WO 361/1954, WO 361/1979, WO 361/2165, WO 361/2165, WO 361/2184, WO 361/2070,