Thank you for your replies. I have the following information
living in Dalmeny 1829; Ratho 1838; Kirkliston 1841living in Dalmeny 1829; Ratho 1838; Kirkliston 1841
On his death certificate it names his parents as Thomas Guthrie,(by trade a Cooper) and Isabella Thomson, Thornton or Johnston. On the census records it confirms as in the death record that he is married to Catherine Brown and that he was born in Eyemouth. The only person which fits in Eyemouth suggest that his father is Robert Guthrie. There are other Thomas Guthries born 1801 in Berwickshire but census records show that they still in Berwickshire at the time when our Thomas was in Midlothians
All searches show that I have the right parents and this suggest that there may be a mistake on the part of the registrar or person completing dtails of his death.
On further research it looks as if she may have been another of Thomas's in-laws Isabella Walkinshaw. who was born in 1852 in Berwickshire.
The only records I can find are a marriage of a Thomas Guthrie to Mary Aitchison in Coldingham in 1820. Given that Thomas was born in Eymouth in 1800 it seems likely that this is an uncle.
I have plenty information on his descendants but it is his parents who are causing problems.
Catherine was born in 1797
Further to this I have an Isabella Thornton married to a Thomas Guthrie. Their son Thomas born about 1800 married a Christian from Dunvegan in Skye!!!!!! T However in 1871 they are in Chirnside Berwickshire - she is 47 and he is 70. This doesn't seem right as he died in Bathgate age 86.
The mystery grows
