Inevitably the odd whoopsie has survived all my checks.
Eric was actually born in Minster, where the family had moved before his birth.
HMS Ark Royal (commissioned 1938) was not in fact the Royal Navy’s first purpose-built aircraft carrier; that honour belongs to HMS Hermes (commissioned 1924).
Convoy PQ16 lost eight (not eleven) of its thirty-five ships, plus two damaged.
My speculation about a project to deploy 3.7s by air is based on the Horsa glider, which was ridiculously inadequate for a load of that weight and bulk. I have since found out that the Hamilcar, just coming into service at that time, had an 8-ton payload, which was tantalisingly close. The gun would still have needed a lighter and smaller carriage to fit, however.
A 'Mike' target involved concentrating a regiment of artillery on a single objective; 'Uncle' target brought in the rest of the division; and a (very rare) 'Victor' target deserved the attention of a whole corps.
I have since discovered that Lieutenant Jimmy Coyle was killed in October 1944, serving with 2 Commando in Albania. He was just twenty-two years old.