Dear Stuart, Not directly relevant to your query, but mentioning some of the surnames you are looking at. Concentrating on your gg grandfather John Oal (or Auld?) did he have a father or grandfather (or even uncle) John Oal born c 1817 who was the son of Thomas Oal born c 1771 who was the son of William Oal? Thomas Oal married Elizabeth Bain 1802. Further back an Agnes Sutherland married a William Dallas 1722. Yours hopefully, Jenny