...Why it would also be used by Christina for Margaret is tough to wrap the brain around...
Could it be possible, that Christina had the child in secret, with the rest of the family not knowing? Perhaps that is why the child was named McIntosh, to further "hide" the baby, and also perhaps why Christina was living with Christina Webster...
What I would really like to find out, and I probably won't, is if Margaret was adopted as a baby, or when the mother died at aged 9 Obviously the child was adopted after 1901 by the Bryans... is there not a 1906 Canadian Census?...
Daisy Loo
Ps, I did go back and read the "notes" and yes, the additions certainly add "meat"

But are we really sure Christina is related to these people?