slight problem - the almost identical match on children is given by Thomas Corlett + jane killip - only in 1841 children Elizth + Cath are reversed (cath has the 'correct' age in 1851) and there is a marriage for the couple 21 Jan 1827 at Jurby on the IGI (tho in a batch of names) - this fits with the first child - the only catch is that in 1851 she gives age as 45 and born lezayre - best fit is born Andreas.
There does not appear to be any children of the 1819 Corlett Killip marriage - thus need check marr reg to see if she was a widow - tho many Corletts emigrated post 1826 I would have expected to see children if they remained on Island until the mid/late 1820's