In 1851 I have only [so far] found Robert, Isabella & Margaret BUT I did find a Mathew Stewart [right age group], scholar, as a boarder at Bridge End, East Linton[where is East Linton].
As for this Isabella's last name I will assume at this stage that the census taker misheard & wrote ?McKenzie.
I note Margaret is around the same age as Matthew.
Do you know if 'Mathew' is an unusual first name for that time & place, as it has been carried forward to the present day?
