I am surprised to hear from someone after all this time. Your great, great grandfather Richard was my great uncle. I have some information, unfortunately most of it is not on computer. I do, however, have an extensive Welsh family line created in MS Word which I would be happy to send you via email. I will of course ask your help in updating it to the current time.
Please send me your email address at firstname.lastname@example.org
with the title Welsh family.