How lovely to hear from you. I did try to contact you a few years ago but the e-mail address that Gareth Jones (Jerman Project) gave me was probably out of date. At the time I was able to contact Ann Griffiths through her niece who saw my post.
I can confirm that my Great great grandmother was indeed Mary Emma Jarman, one of Richard & Mary's daughters. She was married to my Gt gt grandfather Edward Humphreys & they lived in Porthmadog. I haven't got much information about her because my grandfather, their eldest son, died before I was born & no one ever talked much about him. I do know that she was a teacher & my dad used to say that they were very stern & strict. I don't think she was an artist, but I could be wrong. As far as we know her brother Hugh & one of his sons were the artists.
If you have any other infornation about Mary Emma or anything else about the family I would be so pleased to hear about it.
Look forward to your reply.