LS, MLS of members of the air training conference posing in a group in front of the centre block of the Parliament Buildings. Recognizable are: Front row: JL Ralston, second from left; Senator Raoul Dandurand, fourth from left; Lord Riverdale, fifth from left; Mackenzie King; Ernest Lapointe, eighth from left; Norman Rogers, tenth from left. First row standing: Ian Mackenzie, fifth from left; CD Howe, seventh from left; Air Vice Marshall George M Croil, ninth from left (00/12/1939).