That is a new and very interesting piece to fit into the jigsaw, thank you. That means that Euphemia Mowatt is not my ancestor (no French connection then!). I have a copy of Euphemia's death certificate - if you don't have it I can send you a copy but for now details are: date of death 22/10/1865 at Macclesfield Springs of heart disease. She was 57, and her husband's occupation was farmer. I also have a copy of John Miller's death certificate. You may already have this, but on the 1851 census Sarah Miller is12, Euphemia is her mother, their address is Rumbles in the civil parish of St Andrews Orkney, and her place of birth is given as St Ola, Orkney. Other household members are Barbra 5, Jane 7, John 36, Robina 1. I have family information on Sarah's husband John Snell, a bit on the life of their daughter Sarah Elizabeth (born 1858), and some on their son Albert Henry (born 1867). Let me know if you are interested in those strands of the family. I'm still looking for that photo of Charley (Charley's war service record is available online, if that is of interest).
Cheers
Livia