It looks very much as if John Corrie's mother was a Janet:
1841
Smithy Croft, Parton
878 Ed 3 P 6
Corrie
Nathaniel, 75, Blacksmith
Janet, 70
Miller
James, 13
Jane, 10
Grizel, 7
Nathaniel, 20, blacksmith
on the previous page (5) , same address:
Corrie
John, 30, blacksmith
Helen, 25
John, 7 months
David Haugh, 15, apprentice smith
All b. Kirkcudbrightshire .
Unfortunately, no relationships were given on the 1841 and ages 15 and over were rounded down to the nearest 5 year age grouping.
Gadget