Are there any Genealogist from the Channel Islands (particularly Guernsey) contributing to AnswerPool? Or any researching their families whose roots lie in the Islands.

This web page will give you the postal address of the Channel Islands Family History Society, and one specific to Guernsey:

http://www.ffhs.org.uk/General/Members/England.htm#2CHA

I hope they will be able to help you. I'm afraid I only know about resources in England - and not all that much about those!