Here's a link to details about some of the Mahys that signed this book:http://www.taylor-thomas.org.uk/familytree/family.php?famid=...
They're distant cousins of mine. I'd be interested to know a bit more about how Ida (who visited from the USA) was related to the Guernsey families.
I too agree the book should go to the Priaulx Library if possible. They were very helpful in getting me started on my Guernsey ancestors, and again when I finally visited them several years later.