Hi
Much of my research has been thro PRO (public Records office) in Kew... there is not much you have to be a detective to hunt it down also I made contacts in the RN Museum.
You must remember that records were not kept for prosterity but for service activity so what exists is limited and will be official such as deployment records at the time of the war.
I will try and upload some stuff for you..
Are you aware of Swallows nest museum where many records and information are kept - that's the RNPS home.
Much of 237 work was classified so even today it is difficult to get info.
St Nazaire... there is a book written by one of the officers/authors and ML 237 is mentioned - I have the book here somewhere.
Anecdotally she was involved in a spy story, There is one point in her career when she was badly damaged taking on an eboat off the coast of Pembrokeshire.
The crew where a special group - do you have any photos? or other data?
My father never spoke of his time as most people didn't...just the odd snip
A weird set of events - my father according to his record served on many ships never settled until ML 237
Years later as an RNR person I worked on may ships and submarines but really liked Ley class minesweepers! the 'modern equivalent of 237!
I will be in touch as soon as I can....you can email me direct
ph@richardlawrenceassociates.co.uk