Letter to Mr Earle
- Subject: Discussion of the sources of The Lord of the Rings, and the origin and pronunciation of the surname "Tolkien".
- Description: According to the records of the Marquette Unviersity, the letter was "offered for sale by DMK Books with The Lord of the Rings in 3 volumes, First Editions in dust jackets, George Allwen & Unwin, London 1954-1955".
- Publication: A description of the letter appeared in The J.R.R. Tolkien Companion and Guide: Chronology.