Derek,
First, a big thank you for your reply and info. There is little doubt this is the right person as her maiden name was indeed Parker and husband James.
However, I'm unable to find the reference from the link you have provided. When I click on this I am presented with 14 further link options, could you confirm the one I should choose please.
Alternatively, as I now have the year 1975 could you advise me where she was buried. I am given to understand it was in Cape Town or nearby.
Regards
Jolyon