The 1871 gives his age as 27

In 1861 there are two candidates.
Thomas aged 17 living with his grand parents Thomas & Jane Collister.
Thomas aged 16, agricultural labourer working for John Quilliam

1851, Patrick, district 1, schedule 56, Ballane
Edward Moore, head, married, 34, agricultural labourer, Patrick
Margaret, wife, married, 34, Rushen
Catherine, daughter, unmarried, 13, Patrick
John, son, unmarried, 12, scholar, Patrick
Ann, daughter, 10, scholar, Patrick
Thomas, son, 6, scholar, Patrick
Margaret, daughter, 5, Patrick
Edward, son, 3, Patrick
Robert, son, 1, Patrick

This is the family of Edward Moore & Margaret Maddrell who married 14 Nov 1835

1851 Patrick, district 3, schedule 47, Rheaby
William Moore, head, married, 78, farmer of 31 acres, Patrick
Ellen, wife, married, 76, Patrick
Philip, son, unmarried, 30, Patrick
Thomas, grandson,6, Patrick