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
Clement Moore Butler was thereafter chaplain to the United States minister at Rome, Italy, and the second rector of Grace Church (now St. Paul’s Within the Walls) in Rome (1861–1864). When Butler returned to the United States in 1864, he became professor of ecclesiastical history at the Divinity School of the Protestant Episcopal Church, Philadelphia, until 1884 when he retired due to ill health. Butler died on March 5, 1890, in Germantown, Pennsylvania. In 1836 Butler married Frances Livingston Hart (1816–1895) in Washington, DC. They had three children: Frances Livingston Butler, Helen Moore Butler and Clement Moore Butler. Frances was a niece of