I'm Steve from www.my-malta.com and perhaps I can help you in some way. The woman you mention - Maria Bonnici - was my g'grandmother. Giuseppe is featured briefly in my page: http://www.my-malta.com//service/stationed02.html
Moreover, I should be able to get you in touch with others from the Hibbs side of the family, but to be ethical and correct, I think that what I should do is pass your message and email address to them and trust that they will contact you in due course. Another thing I can tell you is that if you have not already checked out this page, you will be pleasantly surprised as the ppl I mention are in it: http://boards.ancestry.com/localities.britisles.channelislands.gsy.general/204/mb.ashx
