J.J. & KarenM.
Thanks for your help and interest. To give you more information and answer your queries.....
Helen (Nellie) Hannah was born Helen Morgan Hannah in Crail, Fife, Scotland on March 10th 1896, and her sister Jessie Hannah was born on May 1st 1894.
They both emigrated to Canada (I guess) in the mid to late 1900s as they were both at home in the 1901 census, and I can find no record of either marrying before leaving. As a young girl, my wife wrote to Nellie on behalf of her grandparents in the late 1940s/50s, but we have lost all record of those days. She remembers them as living in Saskatchewan, in a typical farm house.
The "Slater" reference is as a result of my finding a record in the Rootschat archives under Bayne (their mother's name) from someone called Rosemary Slater asking about her husband's family, having been to Crail in 1997 without much success. I guessed that this would be one of the descendants and tried to e-mail her [after about 6 years] but the e-mail address was unknown.... so near and yet so far!!
Bob S.