It was buried among the legal ads in a local newspaper this week, nary two paragraphs long amid public notices from municipalities and legal name changes. It was a federal court announcement, but no ordinary one, from a treasure hunter announcing to "modern day pirates" that he was laying claim to a previously undiscovered Civil War-era shipwreck buried off the coast of Asbury Park — the maritime equivalent of a wedding officiant asking "if anyone has reason for these two not to be wed, speak now or forever hold your peace." The "groom" is Allan Gardner, a Florida diver who...