found this little bit of trivia,'
In March 1957, after acquiring a guitar, John formed a skiffle group with Pete Shotton and for all of a week, they called themselves the Black Jacks. The name was quickly changed to the Quarry Men, after their Quarry Bank School, partly tongue in cheek, and partly to give the group credibility, according to "Lennon" author Ray Coleman. Their school song, "Quarry Men, Strong Before Our Birth" was rather prophetic. Group members would come and go, but the Quarry Men tag lasted well into 1959,

White Sands Dive Shop