I began researching the authorship of "Night Before Christmas" in 1999, and pulled Vassar professor Don Foster into the attribution quest. Don came out for Henry in 2000 to massive publicity with Bryant Gumbel and in People Magazine and The New York Times. But there was a gentleman trying to sell a manuscript copy of the poem from Moore and our research made the value of his document drop, so he hired a paranormal investigator to challenge us. About a decade later, one of the preeminent names in attribution research, Emeritus Professor Mac Jackson, contacted me to say that he...