My grateful thanks go to everyone who has contributed to this thread: that's you, JenB, and you, Ciderdrinker.
All of the information posted here checks out and fits perfectly.
I have subsequently added it to my wife's tree; she is thrilled to be in the lead with a thrice-married rellie!
As a parting shot, it would seem that the heretofore unknown marriage to Ann Turnbull in July 1858 was a "shotgun" affair as son John Thomas Stobbart was born soon after in the September quarter!
And, incidentally, he must have died very soon after as John Turnbull Stobbart was born on 20 Sep 1864. I'll look for a death...
All that remains now is to find Thomas' birth/baptism.
In spite of early facts pointing to Cassop in 1830, I am now erring on the side of c1834 as that date fits with most of the census returns and also his age at death.
I'll start searching for this tomorrow; we all deserve a rest for today!

PS Keep your eyes peeled for an upcoming request for help on his father, another
verdammt Thomas Stobbart!
