There are soooo many William Cain(e)s. It would help to have a bit more information. Any idea of some siblings names?

There may be some more information in the English records from which you could work backwards to IOM roots. There might be some newspaper articles, some RAF records, perhaps Ministry of Defense records, etc. that would provide some specifics that could help us pare down the list.

In the meanwhile I'll see what I can gather as possibilities. Please feel free to contact me at my email address.
Regards,
Donna