Thanks for all that information!
I wasn't aware there were two children named Anthony. I knew there was one born in 1879 but I didn't know there was another born in 1883. This raises the question about what happened to the elder Anthony? Did he die before 1883, and have a younger brother named after him? I know that one of the brothers died in Glasgow in 1969. His Granddaughter says that he died aged 85 which would seem to place him as the Anthony born in 1883. As to Bridget and Mary many thanks for the Baptismal information - where did you find this? It is strange there are no civil records for them. I know Bridget died around 1956 in Edinburgh unmarried but Mary's fate is unknown. Danniel Kelly is also a strange case - there is no trace of him after his birth. Though he was mentioned by relations, which would indicate he lived until adulthood.
The Mary Carey connection sounds promising. I'll need to look into this. If Hugh was still alive in 1875, I wonder if we can find a record giving his death?
There is one final mystery in all this. You'll notice the 1911 census includes grandchildren:
Donaghue Darby 13 Male Grand Son Roman Catholic
Bingham Denis 6 Male Grand Son Roman Catholic
Barrett Rose 5 Female Grand Daughter Roman Catholic
These are all strange surnames, since none of the Kelly sisters (Mary, Bridget and Margaret) were married to these people. I was told that it was likely out of wedlock. The Denis Bingham connection is very telling - Anthony Kelly Jnr. was working for an elder Denis Bingham and his father Arthur Shane Bingham as a servant. Long story, but I suspect the Denis Bingham on this census is one who was born out of wedlock to the elder Denis. So who was the mother? And who on Earth is Darby Donaghue? I know there was an elder Darby in Belmullet but there is simply no obvious trace of who the mother is. As to Rose Barrett, Margaret Kelly died giving birth to her on 17 April 1905 so this one is cleared up a little. But no info on the father here.
Thanks,
Tony