Hello L B
Thank you for your enquiry and for the photographs.
I wasn’t quite sure what to make of the uniforms the two gentlemen are wearing, thinking at first they might be Petty Officers, though going by the cap badges, not, yet they don’t seem quite the same as RN Lieutenants, and their jackets are slightly strange. I wonder what others make of them. Do you have any more details about his having been with MTBs at all? I performed a thorough check within the Navy Lists both under Evans, as well as the principal bases on Malta: St Angelo, the general Royal Navy base, and Gregale, the Coastal Forces base, but could find no mention of him, if he was an RN or RNVR Officer. Any more details would be appreciated.