Before summer 1996
The Knitting Club was an organization devoted to the art of needlework. They published a magazine, Knitter's Own, which covered knitting patterns and tips. The owners of the home Horace Slughorn stayed at in the summer of 1996 may have been members of this club, as they owned a copy of their periodical.
- Harry Potter and the Half-Blood Prince (film) (Mentioned only)