Ok, I cannot find 1861.
It seems wife Margaret may have died in 1865.
In that 1841 census, I missed the rest of the family because I took a / / to mean the end of one family, beginning of the next. It wasn't. So, in addition to Margaret (16) and Thomas (9) - already noted - there were John (13), and William (11). Margaret the elder was noted as 50, while William the elder was noted as 45. (It needs to be remembered that ages for those 15 years and older were supposed to be rounded down to the next 5, but the census takers often had their own way of interpreting that because I have seen someone aged 14 years rounded to 10, and someone aged 13 years rounded to 5.)