Thanks for the information.
JTK died in Walkergate hospital Newcastle upon Tyne of an infectious disease but buried from 28 Upton Street Gateshead as you say. Mother was the informant. I haven't been able to track down a baptismal record for him (JTK) so wondering if he was baptised in hospital. His birth cert says his father is 'A GATESHEAD MINER' no name given which I thought very odd but mother's name is Marg Kavanagh.
JenB, your find is interesting. I know Margaret's brothers, Mathew and Michael, were living in the same area certainly on the 1901 census at 21 Walker Street Gateshead, Cath B was born at 12 Walker street Gateshead in 1896. The librarian told me that as Marg was not a rent paying person she wouldn't be listed and children were not listed either under a certain age and Cath B would only have been 5 then. The age would fit too as Marg was born 1874 Daisy Hill Leadgate Durham to Owen and Ann Mc Coy. Why would she be using her maiden name? Even if Thomas was dead then would she not keep his name? It would be way too much of a coincidence to have two Marg Mc Coys' living at the address with the same ages and being born at the same place surely?
On the 1911 census Cath Bridget is listed as a McIntyre living at Anfield Terr, Catchgate, Durham. Why not use her real name of Kavanagh?
My head is suggesting that perhaps Thomas, as you say, was an immigrant, a navie, and they married but maybe he did die, or left her for some reason, maybe returning to Ireland himself somewhere between Cath Bridget being born in 1896 and the son JTK be conceived or dying in 1899/1900. Again guess work on my part.
I have never found any records for Thom Kavanagh working as a miner and Durham Mining have long lists going back a long way which is how I found Patrick McIntyre's sons working in Lanchester as miners. I have never found a death or any other records for Thomas other than a marriage cert. If I can get mother's maiden name from the marriage cert maybe I can trace that link - I hope.
I have never had access to immigrant records so not followed that lead up as no idea how to or where to start.
I have contacted Durham records office and will find out tomorrow - I have everything tightly crossed that the priest listed mother's maiden name or an address or something I can follow.
Again many thanks to you all for the information, it is interesting.
E.