There is a page on Fabebook for the BBC Antiques Roadshow. It has the clip from the show. People have left comments below, including a gentleman who has left the following information:
"Catherine L Short was born in 1928 and she appears on the 1939 Register in Ruislip. Her father was Henry M Short and her mother was Elizabeth Short. I cannot find a death for her in the years following but she must have already died, otherwise her entry in the register would be blacked out."
I think he means redacted.
A lady has then posted this: '"on electoral registers in Ruislip up to 1963 at which time she was living at Field End Road."
Then this: "Thanks for all your hard work everyone! You’ve been brilliant! We’ll compile all the clues in the office 🤞 any more suggestions do email
antiques.roadshow@bbc.co.uk"