|Hogwarts Gobstone Club|
The Gobstone Club was still active in the mid-1990s, when it was disbanded following the enactment of Educational Decree Number Twenty-Four by High Inquisitor Dolores Umbridge. The members of the Club did, most likely, ask permission to re-form from Professor Umbridge, something Ron Weasley thought she would not oppose.
- Harry Potter and the Order of the Phoenix (First mentioned)
- Pottermore (First identified as Hogwarts Gobstone Club)