A group of rag-tag kids in the Robert Heinlein book "The Moon Is a Harsh Mistress."
These kids were purportedly headed up by a very young Hazel Stone (whose further adventures can be gleaned in Heinlein's "The Family Rolling Stones"). The purpose of this group was simple: get information about the Warden's goons, heckle the goons relentlessly, confuse adults, distrubute pamphlets which had information about the Lunar Revolution and act as spies for potential new recruits. All information gotten by the Baker Street Irregulars was conveyed to Adam Selene (aka Mike, MYCROFT Holmes Mark IV and Simon Jester). This same group got their orders from either Adam Selene directly or from the top-most cell in the Revolution.