Few years gone by but this is as far as I have got.
Isabella emigrated to Canada in 1921 on the ss Melita sailing from Edinburgh to Quebec. Reason on papers was to get married to Peter M Campbell, RR2, Lacombe, Alberta.
http://data2.collectionscanada.gc.ca/nmc/n0043265.pdf (map of where he stayed).
She was to get there using rail CPR. Departed 7/10/21 arrived 14/10/21.lied about her age giving 33 instead of 40.
Relative address in Scotland was sister Janet Porter, 3 Halbeath Rd, Dumfermline.
Named after her fathers aunt.
Isabella Stewart emigrated to Canada, married Peter Campbell over there, they adopted a girl called Muriel from Edinburgh, Scotland (Muriel need not have been born in Edinburgh just in an orphanage there). Isabella came across to do the adoption.
last know address was 210 Alfred Street, Kingston, Ontario. (nickname Bell). Frontenac county. Guess this was 1950's just before she died as elderly relative, now deceased, stopped getting letters from her.
Age 29 on 1911 census and living with mother, James and Hendry at 12 Springwell Place, Edinburgh.
Thanks to all you people who tried their best for me.
Alan.