Simon Glancey has submitted the following:
Sgt. McGuigan was killed when Avro Lancaster I W4967 SR-P of 101 Squadron was lost on a mission to Courtrai. The Lancaster is thought to have been shot down by a Luftwaffe night-fighter flown by Fw. Karl Bayer of 1./NJG4, and crashed in the Karmelieten Klooster in Courtrai. The Lancaster was a ‘special operations’ aircraft, and carried secret ‘Airborne Cigar’ (ABC) radio jamming equipment, used to block and sometimes imitate German radio transmissions. W4967 carried an extra crew member to operate the ABC equipment. Of the eight crew members, only one survived to be hospitalised; he was made a P.o.W. after his recovery.
Royal Air Force Bomber Command Losses of the Second World War: 1944; W.R. Chorley; 1997; Midland Counties Publications; ISBN 0 904597 91 1, page 345
He is remembered in Blyth on B42.23 and the Seghill on S11.07