W G Lockhart]]> IBCC Digital Archive]]> Sue Smith]]> David Bloomfield]]> eng]]> Technical aid]]> Text. Correspondence]]> Text. Service material]]> Text]]> Civilian]]> Royal Air Force]]> Royal Air Force. Bomber Command]]> Great Britain]]> England--Cambridgeshire]]> England--Lancashire]]> England--Manchester]]> 1944-03-30]]> 1944-03-31]]> 1944-04-01]]>