Birth of Thomas McLauchlan
https://familysearch.org/ark:/61903/1:1:FQFH-VJY
baptism age 20
http://churchrecords.irishgenealogy.ie/churchrecords/details/ff10170000166
siblings
Christina and Helen,Twins 2nd April 1855 in Duddingston
William 9th June 1860 in Anderston
John 23 Sep 1862 in Anderston
Catherine Lamond 9th Jan 1867 in Anderston
So you should be able to find them on 1861 Census in Anderston
Note the spelling is generally given as McLachlan
I have distant relatives here in Dublin by name of McLachlin whose name i was originally given as McLoughlin who i never could trace till i found a burial in Glasnevin 1997 which gave the informant in her married name i found this lady in the phone book and when i spoke to her she told me her maiden name was McLachlin not McLoughlin so watch out for that when you are doing your search.
Thanks Dathai, I have the info regs the Family in Scotland, found the family on the 1841 -1851 census, I think its possible the whole family 'may' have arrived in Ireland before the marriage in 1877, William, Thomas's father was also employed as a Glass worker in Scotland so its possible this is what drew him to Ireland.
From past 'heartache' I kept in mind there would be variation's of the Mc Loughlin name in mind when I started the search, as you well know, it wasnt uncommon to drop O's and A's when its suits..I even looked at the 'Mac' been dropped..
I have info that there were 2 church burials in 1885 for a Catherine Mc aged 50 and another aged 59 in Dublin.these be worth looking into though the Info does not give whether it was South or North Dublin...I may have to purchase the certs to see what info can be gleaned from them.