Possibly Robert, son of Robert Corkill and Catherine Kermeen.
The IGI gives a christening date of January 1, 1841 and he is six months old in the 1841 census (taken in June). However in 1851 (taken March 30), he is nine, while in 1861 the only Thomas that I can find in Maughold is 20.
Robert was buried April 4 1853 aged 47.