From Tolkien Gateway
J.R. Titmass was a Man living in the 21st century Britain.
Titmass was a well-known historian of 20th century Oxford. When Mr. Howard Green, the school clerk of the Examination Schools in Oxford found the Notion Club Papers in the basement of the said school, Titmass was the one who had shown that the name of Nicholas Guildford, the reporter of the Club, was certainly a fictitious name and derived from a medieval dialogue at one time read in the Schools of Oxford (The Owl and the Nightingale)
He later informed Green that he couldn't find any record in the 1940's of the names given in the Papers, so that Green assumed that if any such club existed at that period, the names would have to be pseudonyms.
- ↑ 1.0 1.1 J.R.R. Tolkien, Christopher Tolkien (ed.), Sauron Defeated, "Part Two: The Notion Club Papers: Foreword and List of Members"