Hi Zeppelin 321,
Thanks for your message. Yes we share the same great great grandparents. My great grandfather was William, born 1835 about a year before his brother John who was your great grandfather. The note in my father's papers says that John left home to work on the railways and lived at Penllain, Croesyceiliog. After marrying he lived at Bryngors Farm, then Gelligeirios (1881) and finally bought Abercyfor, Cwmffrwd, Carmarthenshire. I seem to remember my grandmother Margaret mentioning Gelligeirios occasionally. Was John's wife called Anne or Margaret?
I assume that we are both in the dark when it comes to tracing the parents of Thomas Marks (circa 1799-1880)?
Good to hear from you.
RM