wow, huge big thanks for all that. i did find what i took to be my mary on the free 1881 census on the igi, as born santon, with her unmarried son edward b 1844. and in 1881 at the same address is her daughter margaret quirk.
have got terribly involved with mary at the cost of all the other siblings because i got all interested in her son william cashin who was the custodian of peel castle and took edward v11 and queen alexandra around the castle.
I also did a google book search on a book called cashins of patrick and found mary killey b 1812, but no area.
this seems to be a very interesting family and I am hoping that this is my williams sister because its so lovely to flesh out the bones, with interesting snippets.
I thought that if she showed up on the censuses as b santon that would be a step in the right direction!
I am now longing to come to the isle of man and have a good look around!
big, fat thanks and i will look out for any more info that you all find. what stars you are. xxxx