Thanks for your latest. I have copies of all the census from 1871. The entries in 1871 in respect of Margret Hughes and Susan Hughes have no connection to the family.
Catherine and Bridget were indeed daughters of Ambrose and Catherine (nee Logan). Your surmise in respect of Catherine and Thomas is indeed correct. They were the surviving children of William, son of Ambrose. Thomas was my father and Catherine my aunt. When his wife Rose died William left Dundee and went to Hartlepool leaving Catherine and Thomas in trhe care of his sisters Catherine and Bridget. As far as I am aware he never returned to Dundee but married Eleanor Close in Hartlepool in 1894. I have a copy of the 1901 census which shows them residing at Staindrop Street, Hartlepool. I have been unable to find any trace of them after that.
Patrick (born 1848) was the son of Ambrose and brother of William. I have copies of the death certificate entries for Catherine, Bridget and Patrick. Patrick died 1898, Catherine died 1906, Bridget died 1930. The records give no clues as to where they or their parents were born in Ireland.
I have a copy of the marriage certificate entry for William Hughes and Rose Anne Reilly. Again no clues as to where in Ireland he was born. Rose was born in Haddington, Scotland but her parents were Irish, father Bernard Reilly, mother Mary Reilly (nee O'Neill) but nothing to indicatew which part of Ireland they were from.
I have a whole file of the Scottish records for the births, marriages and deaths and if you want I can let you have a list of everything I have.
They were all Roman Catholics.
I have copies of all records of the family in US.
David.