Thanks to you both, Falkryn and Tik Tic Too ,this family was centred around Calton for many generations and I was pretty sure that was where it was. Another Parish I have come across for the 1841 census was St James but it also says on the document " Calton Entry".
As a coincidence, yesterday I recieved a copy of a book about William Collins` book publishing company for whom my Grandfather and a couple of uncles worked. Wm Collins , the first one , had a friend and mentor in Dr Thomas Chalmers - a significant figure in Church and civic life at the time. I wonder if this is where the Parish name comes from.
Thanks again, Thommoje