Igi has a
Catherine Cowell da William Cowell + Jane Corkill bp Lonan (parish which includes Laxey) 12 AUG 1837
This is only Cath Cowell (or Cowle) born to a William in the time frame 1820-1840 that looks at all promising -
that said the family would appear to be William and Ann in the 1841 census (Lon.2.28.134) with Ann considerably younger than William - in 1851 census (Lon.2.33.80) they are still there but wife now Esther and older than William (? 2nd marriage) - he is still there in 1861 but Cath is missing (however she is at marriageable age) - there is a patron submitted entry for a Cath dau of William/esther born Lonan c. 1837 that looks as if someone else has been looking for same person - 2nd marriages are generally a good indication that children will fly the nest earlier rather than later