September 1922: Boy
1924: Acm. 2e cl.
August 1925: Acm. 1s cl.
1928: Sergeant
29 May 1931: Pilot Officer (prob.)
1 April 1936: Flight Lieutenant
1 December 1938: Squadron Leader
1 March 1941: Temporary Wing Commander
5 April 1943: Wing Commander (WS)
1 July 1944: Group Captain (temp.)
1 October 1946: Wing Commander
September 1939: "officier de liaison" at the ZOAE (Zone Operation Aérienne Est) at Nancy
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