A question on the anniversary of my father's death

My dad, on the right. I woke up this morning thinking about my father. He died 26 years ago today, and since it’s British Isles Friday I thought I’d share a few pix of my very British old man. I also have a question about the old family photo above. I believe it was taken sometime in the 1950’s when we lived in Tripoli, Libya. There is another photograph somewhere of the larger group at what appears to be some sort of professional gathering or meeting, a handful of men and one woman sitting on chairs at either side. My father, ex-British Intelligence, fluent in Arabic, was working for the American government at the AFEX, the Army & Air Force exchange store at Wheelus Air Force base in Tripoli at the time. I don’t know the exact nature of his work but while he was investigating some unusually large financial losses he learned that an American he became close friends with turned out to be embezzling funds. That must have been one helluva an awkward frien...