I am searching for information concerning my gggrandparents, Helen Fairbairn and her husband, William Logan, an Agricultural Labourer. I know that Helen and William became the parents of Jessie. I know that Jessie's brother, or relative, John Logan, lived in Washington DC. Jessie married William Francis Mitchell, son of Alexander Mitchell and Catherine nee Wood, on 6th October, 1865, at Foulden, Berwick, Scotland. Jessie and William migrated to South Australia on the Trevelyan, arriving Port Adelaide 21st March, 1866. Five children were born in South Australia: Ellen Elizabeth, Andrew, William, James Alexander and Davis Francis. Any information will be appreciated.