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@ irmtfan - thanks for that. I'll give that a go.
edited to add the message below.
Follow up for anyone interested enough.
I followed irmtfan's advice and found this user's nickname and a (munged) email on another site.
Also, reading between the lines, Will_H has indirectly and unintentionally helped, in that now I assume the answer to the question is, simply, "No".
Best,
Noel