Simon Glancey has submitted the following:
Sgt. Lockett was an air gunner aboard Handley Page Halifax III LL588 EY-O of 78 Squadron, which was lost on a mission to Scholver-Buer. The Halifax collided in mid-air with another 78 Sqn Halifax, MZ310 EY-U, and both crashed on or near the Dutch island of Overflakkee, south-west of Rotterdam. All 15crew from both aircraft lost their lives.
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 442
Also killed in the same incident was F/Off. R.L. Stanley
He is remembered in Bedlington Station on B163.04