My name is Maureen and Richard and Mary Jerman were also my gg grandparents. My maternal grandmother was Margaret Jerman, born Bryntail mine Llanidloes in 1876. Her father was William Edward Jerman born 1851, Llanidloes.
From what you have written I am assuming you related to one of William's sisters. I remember my mother telling me one of his sisters had moved and lived in Porthmadog and was a teacher?? Was she a good artist also??
I have recently been in touch with Derek Williams as we share the same graet grandparents; I also have information from Gareth Jones and his Jerman project. I briefly met Ann Griffiths again at an aunt's funeral last year but did not have a chance to speak as I could not go on with the family.
Look forward to hearing from you