BOOK

* Bell; Whitmore & Sweeny (BWS) - Unofficial Farthings. A Supplement. ISBN 0951325736, 1994 - 245 pages. - This contains the popular theories as to Where, Why and What.
Previous edition published as: Unofficial farthings, 1820-1870 by Robert Charles Bell. London: Seaby, 1975 Includes bibliographical references and indexes.

* Carson; R. A. G. - Coins of the World   p438.

Edge; Brian (Publisher) - The First Dictionary of Paranumismatica (1991). ISBN: 0951691007. Paperback - A two page entry on Columbia Farthings by Dr.G.H.L. Bullmore.

* Dickeson; Montroville Wilson, MD. - American Numismatical Manual of Currency Or Money of Aborigines, and Colonial, State, and United States Coins: Published by J. B. Lippincott, & co., 2nd Ed 1860 - 271 pages.

Fuld; George & Melvin - Token Collector's Pages. ISBN: 0880000074, Publisher: Boston, MA, Quarterman Publications, Inc., 1972.
Reprints 87 articles that were originally published in The Numismatist between February 1948 and October 1971. Book is illustrated with photographs of examples of various tokens including the Columbia farthings.

Mitchiner; Michael. - Jetons, Medalets and Tokens. Volume Four (2007). pages 2433-5. Mitchiner makes a case for the Columbia Farthings having been commissioned by the Hudson's Bay Company for use either as tokens in Canada or as recruiting tokens in London.

MAGAZINE / JOURNAL etc

* Bullmore; Dr.G.H.L. - Mystery Medalets. Coin Monthly (August 1971).

* Forrest; Bob. - Columbia Farthings: A Hypothesis. Coin News (April 1999) pp38 & 39. - I suspect that the answer to the riddle lies in British policy in revolutionary South America (1820s), not in the annals of numismatics.

* Forrest; Bob. - Columbia Farthings: A Hypothesis. Thirdley. 2nd sales catalogue by Mr Cobwright (Sept 1998) pp2-5. - Very similar to the Coin News article above.

* Fuld; Melvin. - The Columbia farthing: The Token Collector's Page - The Numismatist. May 1969, p615-, illus. - I believe this is the article reprinted in the book above.

* Jones; John F. - The Columbia Farthings. The Numismatist (August 1937) p717.

King; Byron B. - Comments on the mysterious Columbia farthing-size token. - The Numismatist (Feb 1948), pp. 123-125. If you have a copy please email me.

* Kyle; M.H. - The Columbia Farthing An Update. Numismatica Canada - Volume 2 No.3. issue no.7 (Sept. 2003), pp. 148-156. - Descriptions with illustrations.

* Kyle; M.H. - Columbia Farthing #21. Numismatica Canada - Volume 3, No.3. issue no.11 (Sept 2004). - New find added to list.

* Kyle/Hartshorn. - Columbia Farthing #22. Numismatica Canada - (Sept 2008). - New find added to list.

* Sealy; David. - Token Correspondence Society Bulletin Vol 2, No 8 (July 1975) - Wellington/Peel medalet is (in his opinion) the undoubted prototype of the standing Justice type Columbia farthings.

* Sealy; David. - Write-up of impromptu lecture on Columbia tokens. (unknown date) - A possible Zachary Taylor & James Knox Polk link.

Willey; R.C. - Coins and Tokens Mistakenly Attributed to Canada. Canadian Numismatic Journal. - Vol.27, No.11 (Dec 1982). - Makes a single passing reference, no more.

INTERNET SITE

Images and descriptions. http://aboutfarthings.co.uk/

From - Jorgen Somod. (http://www.cam.org/~anfc/colum_e.htm) this site appears to have been removed. Some excerpts below.
Those with a provenance come from three sources:
1. 1931.58 (one example) from the Canfield collection; Canfield was a US collector of the 1890s-1920s, who specialized in Connecticut coppers, but also collected many other series;
2. 1940.88, (several examples), from the purchase of the collection of John F. Jones, a US collector of the 1890s-1920s, who sought to assemble an example of copper coins from every country in the world;
3. 1975.117 (several examples), donation by Henry Gruenthal, probably the remnants of the Harry Prescott Clark Beach, jr., collection, a collector of New Jersey coppers and other coins who was active in the 1920s-1940s.
Further known references
Josef Neumann, Bescreibung der bekanntesten Kupfermünzen, Band 3, Prag 1863.
Jules Fonrobert collection, sold in Berlin 1878.
Woodward, Frossard, or Steigerwalt catalogues.

General Numismatic Literature Indices
The Numismatic Bibliomania Society (NBS) http://www.coinbooks.org/
Digital Book Index http://www.digitalbookindex.org/about.htm
Numismatic Index of Periodicals http://www.harrybassfoundation.org/search_numlit.asp
British Numismatic Journal (BNJ) Indices Bd. 1, 1903/04 - Bd. 15, 1919/20 ... vol. 16, 1921/22 - vol. 37, 1968 ... vol. 38, 1969 - vol. 60, 1990
British Numismatic Journal (BNJ) Indices 1903 to 2008 http://www-cm.fitzmuseum.cam.ac.uk/dept/coins/britnumsoc/publications/BNJ%20Contents%201903-2008.pdf

Having information in print is alway best, as opposed to the internet where sites or ISPs can go down and information lost. Any new finds or new information will be forwarded to the Editor of Numismatica Canada, for approval to be published.
M.H. Kyle has put together an updated list published in the Numismatica Canada. I feel it appropriate to continue here.