Thanks to both of you.
I have found a record on Ancestry stating that Jonah was born possibly 25 Dec at Tinwald, Dumfries-shire, Scotland not 1726 as a relation had previously found out
Parish records show his marriage to Mary Carruthers which I believe to be correct as
Marriage Date: 31 Jul 1756
Marriage Place: Dumfries,Dumfries,Scotland
Spouse: Mary Carruthers
FHL Film Number: 1067960
This also means his father could be
John Nicholson
Birth 1697 in Tinwald, Dumfries-shire, Scotland
But I have no evidence
Crystal