Hi, a few bits that may help.
Marriage: (which I think you already have)
James Craig
age:21
occ:printfield labourer
residence:Dalquburn,Renton
father:William Craig
mother:Jeanie Webster
Christina McLean
age:21
occ:printfield hand
residence:Main St,Renton
father:Malcolm McLean
moter:Christina McDermid
1891 Scottish census:
Clydebank,Dumbarton
James Craig age:28
Christina Craig age:28
William Craig age:6
Christina Craig age:3
Mary McDonald age:14 boarder
Christopher Adamson age:70 boarder
George Craig age:35 boarder
I found this which seems to tell us about Christopher Adamson;
1 December 1845 Jane Webster married Christopher Adamson in Scoonie,Fife. I wonder if this is James Craig's mum/grandmother???
1881 Scotland census:
Urquhart Farm House,Dunfermline,Fife
James Craig age 19 born:1862 New Cumnock,Ayr son
William Craig age 54
Jane Craig age 52
John Craig age 24
William Craig age 16
Jane A. Craig age 13
Margaret McArthur age 18 servant
Margaret Gibson age 17 servant
Peter Bennet age 52 servant
Donald McDonald age 32 born Invernessshire occ:shepard
I then looked at births in Ayr for 1855-1865 and there were only 2 in Irvine and neither had your James' parents. Then I looked at the ones for New Cumnock and found another 2-both were for James one in 1859 8 Nov and the other 2 May 1861 and both had same parents William Craig & Jane Sloan.Maybe mum was married several times??? Keeping on this line, I looked for a marriage between 1855-1865 in all Scotland for William Craig & Jane and the only one that came close to it is 1860 in Abdie,Fife for William Craig & Jane Eliza Edmiston ?(possible misspelling of Adamson?
In the 1851 census it shows that Jane & Christopher Adamson had 2 sons,David age 4 and Robert age 2 but they do not appear with her & William in 1861. David is aged 14 and with his father in Dundee,Angus and Robert may be one of several Roberts in Fife on their own or he may have passed away.
1871 Scotland census;
Barra,Invernessshire
Malcolm McLean age 50 born 1821 in Barra,Inverness occ:crofter
Christina McLean age 40 born 1831 in Barra wife
Christina McLean age 14 born 1857 in Barra
Flora McLean age 8 born Barra
Angus McLean age 7 born Barra
Elizabeth McLean age 6 born Barra
John McLean age 2 born Barra
Birth:
Christina McLean
13 January 1858
Barra, Invernessshire
parents:Malcolm McLean & Christina Mc-----(cannot read)
* note: on same page is a birth for a John McDonald on the 14 January to a Donald McDonald in Barra
Lasly,I looked at deaths for Christina(McDermid??)McLean after 1884-1920 in Inverness. Now I didn't find a one with the McDermid former surname but quite a few with McDonald. I wonder was Christina's mom a former McDonald??
Hope this helps,Kim