Normally if they die in Aberdeen there is still a way it can be registered in Banffshire but I don't think hers was which was quite strange. 
Not in 1962. 
Until quite recently a death always had to be registered in the district in which the death took place. 
That's why it's always worth a look in a nearby city if you can't find a death where you expect it, because the person may have been taken into a large hospital in the city and died there.