Malcolm
I have 3 scans from the Durham records office showing:
1) the marriage of Thomas Wilkinson of the Parish of Whitburn and Eliz Brewis of this parish (Christ Church) married by licence on 07 02 1810. Names of officials and witnesses are unintelligable.
2) scan of baptism in 1784 at Whitburn parish church showing Nov 5th, Thomas, son of William Wilkinson born 9th August (no mother mentioned).
3) scan of marriage at Whitburn parish church of William Wilkinson of this parish, bachelor, and Isabella Robinson of this parish, spinster, being both of full age, married by licence 01 05 1782. Rector Benjamin Pye, witnesses Joseph and Mary Lee. Isabella signed with a X, William signed his name.
That's all the concrete evidence I have I'm afraid. Frustrating isn't it. I can try and send you copies if you'd like them.