Many thanks Philip, there are certainly some interesting leads here.

I will wait for my Grandfathers birth certificate to arrive before proceeding any further, as the death dates and names of my Gt. & Gt. Gt. Grandfathers are all anecdotal rememberings from my Father's childhood. I suppose that given the potential circumstances surrounding my Gt. Grandfather's death the family probably didn't mention the subject often.

The information that you have provided looks very promising and I hope that the search ties back into this thread and beyond.

I will certainly let you know as soon as I have received the certificate.

Did you see the additional information that I supplied to Sue regarding my Grandfather's siblings and his aunt (unnamed) on the Isle of Man? The details are posted on the Manx Genealogy site.

Best regards

Keith.