Catherine Graham, born 1901 Jarrow on Tyne, last seen 1957, a spinster. I would like to find what happened to her after 1957, I believe she lived in Ayrshire
Catherine is still a mystery though as she was a spinster and the last address I have for her is 1947.
Which is correct - 1947 or 1957?
Catherine Graham' born 1901 Jarrow - I know she was a roman catholic and in 1947 was listed as a spinster.
What is the source of that information?
The GROS started including the mother's maiden surname in the deaths indexes from 1974. There is no death of a Catherine Graham, mother's maiden name Coleman, in Scotland from 1974 onwards.
There are 23 deaths of Catherine Grahams, born 1901 plus or minus two years, between 1947 and 1973, of whom eight have no middle names. Only one died in Ayrshire: Catherine McLeod Graham or Thomson, in 1969, aged 70. However there is a marriage of William Graham to Catherine McLeod Thomson in Monkton and Prestwick in 1922, so I think you can safely dismiss her.
You could do a similar exercise with each of the other 22 to see whether they have two surnames, in other words they were married, and if so whether Graham was their maiden surname or their husband's surname, in which case you can discard them. Then cross-check the marriage index to find out when they were married, and dismiss any married before 1947 or 1957, whichever it is supposed to be. That should leave you with only one or two possibles, then you can decide which certificates you want to view.