Hi All,
I have downloaded death certificate of Peter Simpson, widower of Marian Dickson, he was aged 73 on 6th November 1880, (so DOB approx. 1807) He was a French Polisher, which agrees with census details. His parents were Andrew Simpson(Sawyer) and Elizabeth Paxton. The certificate was signed by his son, Andrew, who I don't think he knew his late grandmothers first name.
From FreeReg,
County                 East Lothian
Place                         Gladsmuir
Church                 Gladsmuir
RegisterNumber   
DateOfBirth         16 Feb 1807
BaptismDate         09 Mar 1807
Forename                  Peter
Sex   M
FatherForename          Andrew
MotherForename          Mary
FatherSurname          SIMPSON
MotherSurname          PAXTON
Abode                  Henmuir
FatherOccupation   Labourer
Notes   
FileNumber   20652
Tom