The partisan nature of the Canningites and the Egyptians ensured that the trial of Elizabeth Canning became one of the most notorious criminal mysteries in 18th-century English law. For years the case was a regular feature in such publications as "The Newgate Calendar" and the "Malefactor's Registers". Artist Allan Ramsay wrote "A Letter to the Right Honourable the Earl of  — Concerning the Affair of Elizabeth Canning", which was the inspiration for Voltaire's "Histoire d'Elisabeth Canning, et de Jean Calas" (1762), who shared Ramsay's opinion that Canning had gone missing to hide a pregnancy. The case was revisited in 1820 by James Caulfield, who retold the story but with several glaring mistakes. Throughout the 19th and 20th centuries several authors offered their own interpretations of the case. Caulfield's essay was followed in 1852 by John Paget's "Elizabeth Canning". Paget's apt summary of the case read: "in truth, perhaps, the most complete and most inexplicable Judicial Puzzle on record".