MacDonald P. Jackson the New Zealand Academy of the Humanities (FNZAH). In 2009 he was appointed a Fellow of the Royal Society of New Zealand (FRSNZ). Jackson's most recent work was a year long examination of the disputed authorship of the classic poem "The Night Before Christmas", also called "A Visit from St. Nicholas." Jackson applied modern computational stylistics techniques to the corpora of verse left by both claimants, Clement Clarke Moore and Henry Livingston Jr., including a new test, statistical analysis of phonemes. His book, "Who Wrote" ""The Night Before Christmas"?" identifies the true author and makes a significant contribution to the
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