We found only one possible reference to this person, on a Wikipedia page which reads: Stevenson, Glennis. "Letitia Landon and the Victorian Improvisatrice: The Construction of L.E.L." Victorian Poetry 30 (Spring 1992): 1-17. Other than that we have found no clues about this person.
Our colleague, Andrew Behan, subsequently states that although commemorated as Glennis Stevenson on the plaque by her memorial tree in Finsbury Park, London, N4, her full name was Glennis Margaret Stevenson. Her death, aged 69 years, on 17 January 2007 was registered in Haywards Heath, West Sussex.
