back in the late 80s I twice had the privilege of being an usher at the BoB Service. will never forget.
On the second occasion I had the Air Force Board pews. Along came Sir Arthur Marshall. I approached him, bid him good morning and offered to show him to his place. He looked at me quizzically and then asked didn't he know me. I confessed that I had worked for him for a year at Cambridge, managing assemblies for the droop nose and visor for Concorde which Marshalls designed and built. He graciously wished me well in my second RAF career.