A Visit from St. Nicholas is now). MacDonald P. Jackson, Emeritus Professor of English at the University of Auckland, New Zealand and a Fellow of the Royal Society of New Zealand, has spent his entire academic career analyzing authorship attribution. He has written a book titled "Who Wrote "the Night Before Christmas"?: Analyzing the Clement Clarke Moore Vs. Henry Livingston Question", published in 2016, in which he evaluates the opposing arguments and, for the first time, uses the author-attribution techniques of modern computational stylistics to examine the long-standing controversy. Jackson employs a range of tests and introduces a new one, statistical analysis of phonemes; he
A Visit from St. Nicholas family lore gives credit to their forebear rather than Moore, but there is no proof that Livingston himself ever claimed authorship, nor has any record ever been found of any printing of the poem with Livingston's name attached to it, despite more than 40 years of searches. Advocates for Livingston's authorship argue that Moore "tried at first to disavow" the poem. They also posit that Moore falsely claimed to have translated a book. Document dealer and historian Seth Kaller has challenged both claims. Kaller examined the book in question, "A Complete Treatise on Merinos and Other Sheep", as well as