Hello Roberta,
I know this is an old post but I just came across something that you might find interesting. I was looking at some of the books in my grandmothers bookcase and one had an inscription by Richard Parry Williams, White Horse Inn, Bangor Street, 1904. Google brought me to this post. The book also has a note that says it was given to him by his beloved mother Ellenor Williams who died April 26th 1908. I have no idea how or why this book and a few others with "R. Williams" came to be in my grandmas possession. She does not remember and we are not aware of any williams in the family. I do know that my Taid's family were farmers and had butchers shop in Penygroes(Llanllyfni). As the book belonged your Taid, if you are interested in it, you are welcome to the book.
Cheers,
Rachel