3 bowls with JR mark - Jean Rabjohn?

Hi

I picked up four bowls recently with a primitive JR mark and dated to the late 1980's. Google has provided little except a piece with it's original paper label noting Jean Rabjohn situated in northwood.

I felt they were very competent pieces with rather good glazes though seem to be a small from a small studio endeavour.

It would be nice if anyone knows or knew Jean and could add some information.

I have left it with the standard three images but obviously I could add more if required.

Many thanks

Would help to have a close up of the mark; might not be by her. A couple here by Rabjohn; both numbered as well as marked with a JR so I'm assuming she kept a running total of the pots she made. She's not mentioned in Ceramic Review

https://www.20thcenturyforum.com/t32690-jean-rabjohn-northwood-jr-mark

Thanks Naomi - Somewhat fitting as I paid up in Cancer Research for these.....