According to the FAQ section of the U.S. Copyright Office’s website, copyright law does not protect sightings of Elvis. However, the Copyright Office does provide instructions on how to protect photos and other depictions of Elvis sightings. According to the Copyright Office: “No one can lawfully use your photo of your [Elvis] sighting, although someone else may file his own photo of his sighting. Copyright law protects the original photograph, not the subject of the photograph.”
So, if you had an Elvis sighting and were lucky enough to take a photograph or have a depiction of your sighting, you should consider protecting your photograph or depiction by filing for a Copyright registration. Instructions are available on the U.S. Copyright Office’s website.