The Maughold parish register has Catharine daughter of William Corlett and Ann Cashen baptised 6 May 1810.
Also has their marriage: William Corlett and Ann Cashen married Maughold 26 Nov 1798.

Other children bapt were Margaret 1801, Jane 1804, John 1806, Ann 1813.

This could be them in the 1841 census, although there were a lot of Corlett families in Maughold. [Adult ages were usually rounded to nearest '5' in this census.]

3 15 60 Talloomitchal William CORLETT 65 Farmer Isle of Man

3 15 60 Talloomitchal Ann CORLETT 65 Isle of Man

3 15 60 Talloomitchal Cathrine CORLETT 30 Isle of Man

This could be son John:
3 16 66 Rhenabb John CORLETT 35 Ag lab Isle of Man

3 16 66 Rhenabb Margaret CORLETT 35 Isle of Man

3 16 66 Rhenabb Mary CORLETT 11 Isle of Man

3 16 66 Rhenabb Judith CORLETT 9 Isle of Man

3 16 66 Rhenabb John CORLETT 7 Isle of Man

3 16 66 Rhenabb Thomas CORLETT 4 Isle of Man

3 16 66 Rhenabb Daniel CORLETT 2 Isle of Man

Sue