Christine Mc Mullen married a John Callion.
The had a daughter who was called Margaret Mc Callion(died 5th may 1911 in Scotland ?) she married my GGG Grandfather William Carr(who was born abt 1841 in Londonderry I think) They had a son called George Car who my GG Grandfather. born abt 1876 at St Eugen Catholic Cathedrial, Londonderry.
He married Catherine Houston(born abt 1878 in Coatbridge,Scotland.) on 17th may 1893 in County Donegal.george Kerr died 23 Jan 1910 in Coatbridge and Catherine died 25 Feb 1953.
I think thats enough history to give you and idea of my family line.
If you can help please I would be greatful. Bill