Its Warren Gatland
The Rugbys was created in 1965.
Warren Gatland
The Welsh translation of "name" is "enw".
Freddy Welsh's birth name is Fred A. Welsh.
Mikey Welsh's birth name is Michael Welsh.
It doesn't appear to be a Welsh name and would not have a Welsh version.
Ronnie Welsh's birth name is Walter Ronald Welsh.
Susan Welsh's birth name is Welsh, Susan E..
If you're talking about the die-hard fans of rugby, the first one "Rugby's Die-Hard Fans" is correct. The apostrophe after the "y" in Rugby makes it possessive, indicating the die-hard fans are fans of rugby. Rugbys would be plural, but the word makes no sense: you can't have multiple rugbys, since it's a sport, and not an object to be duplicated. You can have multiple rugby games, for example, or multiple rugby balls, but not "rugbys."
fair play and enjoyment and partisipation
The Welsh word for "Welsh" is Cymraeg :)
The Welsh name for November is Tachwedd.