Funny also the preponderance of "long", i.e. Lucy- / Storma-

And in addition to "get-along" and "walk-along" there's also "jim along" as found in 19th century (and earlier?) Southern African American dance song Jim Along Josie.

Just guessing (somewhat seriously), I'd say it has to do with bragging about the size of a particular male body part. ;o)


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Btw, I want to clarify that I don't think that Shango, the Yoruba orisa (god) of thunder & lightning-who carried a double headed axe like the Scandinavian god Thor-had anything what so ever to do with naming Black heroes "John". I was talking more about the image of Shango that may have been grafted on to those Black folk heroes.