F.O. Marquis was a member of the crew of five in Liberator VIII KN742 which took off from R.A.F. Bassingbourn on a night training exercise but crashed at the end of the runway.
The Price of Peace: A Catalogue of RAF Aircraft Losses Between VE Day and End of 1945. Colin Cummings; Nimbus Publishing;2004; ISBN 0 9526619-50.