Grost, Micheal E. "R. Austin Freeman". A Guide to Classic Mystery and Detection. Archived from the original on 2 February 2006. Retrieved 28 June 2020.
A. & C. Black Ltd. (1967). "Freeman, Richard Austin". Who Was Who: A Companion to Who's Who Containing the Biographies of Those Who Died During the Period 1941-1950. Vol. IV: 1941-1950 (3rd ed.). London: Adam and Charles Black. p. 411. ISBN9780713601718. Retrieved 2 July 2020 – via The Internet Archive.
Marcum, David (2019). "About the Author". The Complete Dr. Thorndyke - Volume 1: The Red Thumb Mark, the Eye of Osiris and the Mystery of 31 New Inn by R. Austin Freeman. Andrews UK Limited. p. 765. ISBN978-1-78705-392-2.
Rocha, Mona; Rocha, James (2011). "15: A Feminist Scandal in Holmes's Generalisations". In Steiff, Josef (ed.). Sherlock Holmes and Philosophy: The Footprints of a Gigantic Mind. Vol. 61 of Popular culture and philosophy. Chicago and La Salle, Illinois: Open Court. p. 147. ISBN978-0-8126-9731-5.
Royal Geographical Society (Great Britain); Freeman, Dr. R. Austin (1893). "A journey to Bontúku: in the interior of West Africa". Supplementary Papers. Vol. 3. London: J. Murray. p. 119.
Freeman, Richard Austin (1898). "XVII A Chapter on Malaria". Travels and Life in Ashanti and Jaman. New York: F. A. Stokes. p. 502. hdl:2027/uva.x004101128.
Freeman, Richard Austin (1898). "I: The Beginning of the Journey". Travels and Life in Ashanti and Jaman. New York: F. A. Stokes. p. 1. hdl:2027/uva.x004101128.
Freeman, Richard Austin (1898). "I: The Beginning of the Journey". Travels and Life in Ashanti and Jaman. New York: F. A. Stokes. p. 5. hdl:2027/uva.x004101128.
Freeman, Richard Austin (1898). "I: The Beginning of the Journey". Travels and Life in Ashanti and Jaman. New York: F. A. Stokes. pp. 14–15. hdl:2027/uva.x004101128.
Freeman, Richard Austin (1898). "X: Discords". Travels and Life in Ashanti and Jaman. New York: F. A. Stokes. p. 314. hdl:2027/uva.x004101128.
Freeman, Richard Austin (1921). "Reactions of Mechanism on Man Individually". Social Decay and Regeneration. Boston: Houghton Mifflin. pp. 245–6. hdl:2027/msu.31293006947612.
Freeman, Richard Austin (1921). "Reactions of Mechanism on Man Individually". Social Decay and Regeneration. Boston: Houghton Mifflin. p. 188. hdl:2027/msu.31293006947612.
Freeman, Richard Austin (1921). "The Unfit". Social Decay and Regeneration. Boston: Houghton Mifflin. pp. 265–6. hdl:2027/msu.31293006947612.
Freeman, Richard Austin (1921). "The Voluntary Segregation of the Fit". Social Decay and Regeneration. Boston: Houghton Mifflin. p. 318. hdl:2027/msu.31293006947612.
Grost, Micheal E. "R. Austin Freeman". A Guide to Classic Mystery and Detection. Archived from the original on 2 February 2006. Retrieved 28 June 2020.