Hello Gavin, I have a Robert Petrie being born in 1814 in Auctermucty, married January 17, 1847 in Auctermucty to Marion Speedie. I have Robert dying in March 1900 in Dunshelt. I have his parents to be John Petrie and Elizabeth Stevens (or Stivins) Could this be the same John Petrie you are looking for? Joanne Brown USA