Thank you, I had never seen any combination like this before so I had to have it
I've ordered your works on Bronze Stars to the British, Jeff so look forward to going through those, especially for the Navy and Air Force as I have yet to come across any definitive list of them yet. Thanks for all the work you did in making these references possible.
I believe I can narrow it down considerably as you mentioned, the MBE cuts it down greatly already, also the 4th Class Legion of Honor will be the ultimate key. So far I've only come across WO 373 from the National Archives which lists many French awards to the British, but only to the Army from what I can find. All 4th Class recipients from that list were at least Colonel and above, with the majority being Brigadiers/Maj Gens for the Officer Degree and none I could find had only an MBE - it would seem more common probably for those ranks to have an OBE and possibly a Legion of Merit, Officer degree.
The closest I've come so far was to a RNVR Lt Cmdr who was a Flotilla Officer at HMS Orlando in Scotland for the duration of the War. He held the MBE and LdeH, only the Chevalier though. Unfortunately I couldn't trace a Bronze Star to him but that kind of position would fit very well. Or possibly a technical intelligence officer, RAFVR W/Cmdr, there are a few MBE-BS combos I found in the London Gazette.
Anyhow, knowing that this recipient has to be one of those 1191 Bronze Stars is very exciting.