Donald Wayne Foster raised arguments challenging whether the person traditionally identified as the author of a text was correct. He has pointed to an obscure Beat writer, Tom Hawkins, as the author of the Wanda Tinasky letters, which some had previously speculated to be the work of Thomas Pynchon. Foster also joined a long-running effort by descendants of Henry Livingston Jr. to show that their ancestor, and not Clement Clarke Moore, wrote the famous poem "A Visit from St. Nicholas". Foster provided his account of sleuthing out these and other identifications in his book "Author Unknown" (including the Shakespeare-"Elegy" connection, which he still
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