Ingrid,
Great to hear from you! I don't know how much you may know of the Clark family (there's lots and it's huge) but between my cousin Robert and myself we have got back to the late 1700s in Ireland.
Uncle Willie has proven to be a bit of a mystery until now, so any information you have is most welcome. Uncle Willie's brother (my GF) still has three daughters (my aunts) still alive the eldest Nora is 95 and going strong.
Lovely to hear from you, if you want to contact me again please don't hesitate PM me if you like. I still live in the North East so I can help with most queries.
TTFN
Irish