The only thing I question is if Mr Morgan was an AB at the age of 18 he must have started at sea when he was 15 or lower,
One had to have three years sea service to be raised to AB status. and surely to be qualified to be a QM should require a few years as AB/. Bill , No.9
At 16 I was a Deck Boy, then Ordinary Seaman, At the age of 18 took the EDH Exam and then 4 years as EDH got the AB Certificate.
I was a Quarter Master , QM. at the age of 20 On Cunard's `GEORGIC`the last of the White Star Liners in 1955.I was an EDH,
On a Coaster Joined as O.S, made up to AB, then Cook Steward then Coal Burning Fireman
Brian