hi again
you mentiioned 7 children and i have the following for James and Isabella

John MacDonald (isabella)
Mary MacDonald (isabella)
Donald MacDonald (isabella)
James MacDonald ( Mary Macmillan)
Alan (isabella)
Peggy (isabella)
Ewen (isabella)
John Ewen (Catherine MacPhee)
Angus (Catherine MacPhee)
Isabella (Catherine MacPhee)
i got the info from the 1851 census and the 1871
im not sure were i mite have gone wrong but the ones mentioned above all have isabella and james as their parents?