Hello Cathy, I am not researching Slevin, but I thought you might like to know for your friend, that I had a teacher in the 1940s and he was Patrick Slevin. I don't know where he came from, being just a child at the time, would not have asked. He married an Annie Maud Davies from Tylorstown. She was a teacher in my secondary school. Unfortunately though, I do know there were no children. Not to my knowledge anyway. There is a book in Treorchy library that gives the names of teachers and where they taught in the Rhondda, so it might be worth contacting them for pehaps further information that might lay in that book. I hope I am not sending you on a wild goose chase that is all. Best wishes, Maureen Rhondda