Hello

I am trying to find information on my 3G-GF, Daniel Kneen (chr 11 Jan 1786 Ramsey, d 29 Sep 1851, bur KC Lezayre, old yard #536) and his wife Isabella nee Howland (d 14 Sep 1870, bur KC Lezayre #535). I do have some info on their children and many of Daniel's forebears.
Most particularly, I'd like to find a birth/christening record for Isabella: I believe she was born on the IOM but I cannot seem to find a record for her. I had thought I'd perhaps linked her to an Isabel Howland chr 20 Sep 1783 Andreas (parents Ewan Howland and Margaret Joughin) but Margaret's will (1812, And, A, 2 ,0106238) seems to nix that.
I am also curious about an Elizabeth Tuthill whose name is also on the headstone for Isabella (was she a sister. perhaps?).
If anyone is able to help or point me in the right direction to find out more, I'd be grateful.

Thanks!
Malea