How old was Grace O'Brien?

[Margow]

George McLean Robertson labourer (married to Jessie Cowper) died on 23 January 1908 at Carse Grange Errol

[mckha489]

I had a couple of credits.

SS

Generous S.S. 19th July!

I see the registrar wasn’t satisfied with just writing illegitimate, he also had to say John Cooper “died four years ago” to remove all doubt 

[Neale1961]

Oooh, thanks to the generous people who have posted the certificates.
Birth 19 July 1886; case solved!

And Grace's brother -  named John Fernie Thompson ROBERTSON. His birth is also registered under the names Cooper and Sullivan in 1884. See clip.
So the surname of his mother on his marriage certificate was either an error, or pure fiction.

ADDED - I would hazard a guess that the father may have been the John Fairnie Thompson Robertson born 18th October 1857 Perth. (or at least from that family line.) See reply #4 by Heywood.

[mckha489]

Have you noticed replies are getting held up in the ether?
Hence my repetition of info  re Jessie’s arrival (sorry Neale)

[Neale1961]

Grace’s nephew named Billy Robertson, was the son of John Robertson and his wife Ada. They had a boy named William Lynn Robertson in 1916.

[Oscar91]

Wow, incredible job by everyone, I'm impressed that you collectively managed to solve it. So it means she really was born in 1886, and thus 109 at the time of her death in 1995.
By the way, since my posts have to be approved, there is a delay which makes it difficult to communicate in real-time. I'm not Scottish and don't know how the Scottish people site works, but I am immensely grateful to those who spent credits on this case.

[Margow]

Grace's brother, John Fernie Thompson Robertson, appears to have confused his mother's maiden name with that of his grandmother.  When Mary Sullivan married John Matthewson Cooper in 1867 in Arbroath (see reply#12), she named her parents as Samuel Sullivan and Mary Sullivan m.s. BEAN.

[Neale1961]

By the way, since my posts have to be approved, there is a delay which makes it difficult to communicate in real-time.

You are communicating in real time now. It was only your initial response that was delayed because you were new to the forum. Yes, I agree, that delay can be frustrating for everyone.

[Forfarian]

I'm not Scottish and don't know how the Scottish people site works

It's quite simple. You register, and all searches are free. Some items, for example the Kirk Session records, are free to view, and others, for example birth, marriage and death certificates, are pay-per-view, but the cost is modest. If you want to see a document, you buy some credits and then use them to view and download the document you want.