see Len's post - fa Thomas is s/o Edward Kewish + Frances Shimmin
in 1881 Thomas (a joiner) is with parents (edward a Farmsteward) at Mount Rule Road Ballagawne Farm
Edward birth parish Lezayre - Frances's Rushen
She is probably d/o wm shimmin + frances Ellison bapt Rushen 18220728
In 1851 Edward + Frances (m Pat 18430114) are at or near Ballavarkin in Santon - he an agricultural labourer
I can't immediately find Frances Shimmin in 1841
Her mother Frances Ellison was bur at Patrick Pat 18310729 age 36 (the family had moved up from Rushen c. 1825) - my guess in childbirth; she is dau of Edward Ellis/ellison + Christian Kelly (Gorree/Gorry in one putative bapt) bapt Patrick 17960117 - however I can't find any marrage

Edward I think is a 20yr (rounded age) ag lab at Ellerslie in 1841 however I can't find an obvious match for a baptism - he consistently quotes Lezayre as birth parish.