Ann Young Wilson was born approx. 1811 per the 1841 England Census. Ann Young Wilson married John Clay 11 Oct 1822.
Can you confirm the birth and marriage years 
Ann does look a bit too young to have married in 1822
Ann would have been 25 years of age at the time of her marriage to John Clay.
The record of their marriage:
11/10/1822 Clay, John [OPR Marriages 757/00 0020 0114 Whitsome and Hilton]
"1822 Oct 11Mr. John Clay Tenant in
Dykethead in the Parish of Whitsom
and Miss Ann Wilson in the Parish of Ladykirk"
Ann Young Wilson would have to have been born in 1797 because she had twin siblings born 11 Oct 1796- a brother William and a sister Isabel.
I have located the records for 16 Oct 1796, Wilson [OPR Births 676/00 0020 0072 Cockpen] which lists:
"William & Isabel, twins lawfull children to Chalres Wilson and
Ann Young his spouse was born in Mill (?) hulin (?)
the 11 Octr and Baptized 16: 1796- - - -."
I don't know if the twins survived and if so, if they too were raised by their uncle, the tenant farmer at Ladykirk.