Hello Sue, please can you check for a Marriage in Maughold,

Jon Cannell and Margaret Kneale 7 December 1708

maybe this is their child,
" A John Cannell appears with the bapt of his daughter Jane on 1 Oct 1709,"

as Jon Cannell and Margaret Cannon didn't marry until 20 Oct 1711

the only other information I have is for Christiana Christian,

Parents,
Jon Christian and Esther/Easter/Hesther ??? (can't find marriage on IGI)

Jon CHRISTIAN 2 Jan. 1713 LEZAYRE
Ewan CHRISTIAN 27 Jan. 1716 LEZAYRE
Christiana CHRISTIAN 7 Nov. 1719 LEZAYRE

Wills that are needed,
CANNELL, John 1726 Lon A 2 0106213
CANNELL, John 1741-2 Lez E w 0106376
CANNELL, John 1741-2 Mau E d 0106376

hope this helps,
Averil