Offline
The Sherlock Holmes society closest to where I live is called the "Stormy Petrels." I'm embarrassed to say I don't remember how that's a Sherlock Holmes reference.
The way I learned that the group existed was kind of funny: a theater in town shows classic movies every so often, and they were showing the Hound of the Baskervilles starring Basil Rathbone. On the way inside, I thought I was seeing people wearing deerstalkers and trenchcoats.
Then, before the film started, a theater employee made announcements and asked, "Do we have any Stormy Petrels here tonight?" And applause broke out, acknowledging that they were.
Offline
In the story The Naval Treaty, when Watson brings Holmes a new case he ironically calls Watson "...a stormy petral of crime." Stormy petrals are small sea birds usually associated with storms. He refers to himself as a stormy petral in The Riegate Squires.