2 September 1865-2 April 1940
American professor of English literature and philology at the University of Chicago.
Author of various books, some of which are mentioned on LibraryThing at [1]
In 1931 published a paper in Speculum (for which the Wikipedia page is [2]) disproving William Romaine Newbold's deciphering of the Voynich Manuscript: what had been seen as micrography was merely the ink of the manuscript cracking as it aged.
A biography can be found at [3], a bibliography at [4], and another on his Wikipedia page at [5]
The JSTOR link for his article is [6], and a list of his writings can be found here [7]. The Cipher Mysteries page is [ciphermysteries.com/2008/07/27/john-matthews-manlys-papers].
Links checked March 2018.