For C. S. Lewis, the walks that he took each Eastertide with Owen Barfield, Walter O. Field, and Cecil Harwood epitomized friendship. Although they were distinctly unlike in personality and were not all interested in the same things, the four “cretaceous perambulators” shared core ideals and aspirations. Their writings evidence the wonderful strengths of their friendship.
---. “An Interview with Owen Barfield: Poetic Diction - Between Conception and Publication.” By Astrid Diener. Mythlore: A Journal of J. R. R. Tolkien C. S.
Lewis Charles Williams and the Genres of Myth and Fantasy 20.4 (1995): 14-19. Print.
---. “Owen Barfield and the Origin of Language.” Towards 1.2 (June 1978): 1 3-7; 1.3 (Dec. 1978): 13-15. Print.
---. “Youth.” In “Alfred Cecil Harwood: 5 January 1898 - 22 Dec. 1975.” Ed. Suzanne Mainzer. Anthroposophical Society in Great Britain Supplement to Members’ News Sheet. Feb. 1976: 2-4. Print.
---. Address. Untitled. In “Report of the Annual General Meeting.” Anthroposophical Movement 51.3 (1974): 8-10. Print.
---. “Introduction.” Light on C. S. Lewis. Ed. Jocelyn Gibb. London: Geoffrey Bles 1965. ix-xii. Print.
---. “Prologue to Songs and Dances of Many Lands.” Musical Adventures in Cornwall. By Maisie Radford and Evelyn Radford. Dawlish England: David and Charles 1965. 44. Print.
---. Poetic Diction: A Study in Meaning. London: Faber and Gwyer 1928. Print.
---. “What is Theosophy?” The New Age: A Review of Politics Literature and Art 34 (20 March 1924): 250-51. Print.
---. “‘Ruin’.” The London Mercury 7 (Dec. 1922): 164-70. Print. Field W[alter] O[gilvie]. “The Early Teaching of Arithmetic.” Child and Man: Extracts.
Ed. R. A. Jarman. Forest Row England: Steiner Schools Fellowship 1975. 97-99. Print.
Glyer Diana Pavlac. The Company They Keep: C. S. Lewis and J. R. R. Tolkien as Writers in Community. Kent OH: The Kent State University Press 2007. Print.
Green Roger Lancelyn and Walter Hooper. C. S. Lewis: A Biography. Rev. ed. London: HarperCollins 2002. Print.
Harwood A[lfred] C[ecil]. “Walter Ogilve Field.” The Voice of Cecil Harwood: A Miscellany. Ed. Owen Barfield. London: Rudolf Steiner Press 1979. 283-89. Print.
Harwood Laurence. C. S. Lewis My Godfather: Letters Photos and Recollections. Downers Grove IL: InterVarsity Press 2007. 11. Print.
Kranidas Thomas. “Two Prophetic Nouvelles.” A Barfield Sampler: Poetry and Fiction by Owen Barfield. Ed. Jeanne Clayton Hunter and Thomas Kranidas. New York: State University of New York Press 1993. 94-95. Print.
Lewis C[live] S[taples]. The Four Loves. London: Geoffrey Bles 1960. Print.
---. “‘Early Prose Joy’: C. S. Lewis’s Early Draft of an Autobiographical Manuscript.” Ed. Alexander Lazo. Seven: An Anglo-American Literary Review 30 (2013): 13-49. Print.
---. Untitled letter to Cecil Harwood dated 21 Sept. 1957. The Collected Letters of C. S.
Lewis Volume 3: Narnia Cambridge and Joy 1950-1963. Ed. Walter Hooper. New York: HarperCollins 2007. 883-84. Print.
---. Untitled letter to Walter Ogilvie Field dated 10 May 1943. The Collected Letters of C. S. Lewis Volume 2: Books Broadcasts and the War 1931-1949. Ed. Walter Hooper. New York: HarperCollins 2004. 572. Print.
---. Surprised by Joy: The Shape of My Early Life. New York: Harcourt Brace Jovanovich 1953. Print. Mead Marjorie Lamp. “Afterword: Owen Barfield: A Biographical Note.” The Silver Trumpet. By Owen Barfield. Longmont CO: Bookmakers Guild 1986. 117-26. Print.
Milne A. A. “Mullins.” The Secret and Other Stories. London: Methuen & Co. 1929. 9-16. Print.
Rateliff John D. “Introduction.” Eager Spring. 2nd ed. By Owen Barfield. Oxford England: Barfield Press UK 2009. ix-xiii. Print.
Schenkel Elmar. “Interview mit Owen Barfield.” Inklings: Jahrbuch für Literatur und Ästhetik 11 (1993): 22-28. Print.