He was the author of More Wonders of the Invisible World, a book composed throughout the mid-1690s denouncing the recent Salem witch trials of 1692–1693 and particularly examining the influential role played by Cotton Mather.
[3] His writing displays broad education and it is possible that following grammar school he attended one of England's clandestine dissenting academies[4] as evidenced by Cotton Mather's use of the title "Mr." ("Mr. R.C")[5] and Calef's pride in having no proficiency in Latin.
[6] (In contrast to Oxford and Cambridge, the English language was generally preferred for instruction in dissenting academies, as Latin was viewed as having ties to Rome.
Robert Calef, after exchanging letters with Cotton Mather and many other area ministers, published his book More Wonders of the Invisible World, with his title being a riff on Cotton Mather's own introduction to his account of M.Rule "yet more Wonders ..."[12] Calef objected to proceedings that lead to "a Biggotted Zeal, stirring up a Blind and most Bloody rage, not against Enemies, or Irreligious Proffligate Persons, But (in Judgment of Charity, and to view) against as Vertuous and Religious as any they have left behind them in this Country, which have suffered as Evil doers with the utmost extent of rigour.
Cotton Mather records a date when Calef's manuscript shipped to London, June 10, 1698, as well as when bound copies returned in print, November 15, 1700.
[28] It is remarkable that Robert Calef, a tradesman, possessed a well-developed writing style and intellect that enabled him to frequently get the better of the highly educated Cotton Mather.
An example of Calef's rationalism and biting wit are provided by his response to Another Brand Pluckt Out of the Burning, Cotton Mather's account of the possession of Margaret Rule.
I know Mr. Cotton Mather, in his late Folio, imputes [the Salem witchcraft] to the Indian powwows, sending their Spirits amongst them; but I attribute it to Mr. Baxter's book, and his, and his father's, and the false principles, and frightful stories that filled the people's minds with great fears and dangerous notions."...
Though Upham does not swerve to hit the Mathers, and his statement seems mild in comparison to those that had gone before, it garnered an agitated 67 page response from William Frederick Poole, a librarian at the Boston Athenaeum.
WF Poole complains that "every school boy knows the story by heart" of Cotton Mather mounted on horseback at the execution of John Proctor and George Burroughs, as described by Calef.
Its tone and temper contrast very creditably with those of his chief antagonist, Cotton Mather, whose fingers were grievously burned in attempting to handle Calef, whom he denounced, with unusual professional emphasis, as a 'Coale fetch'd from Hell.
"[40] In 1924, TJ Holmes, wrote that the critical view of Cotton Mather was based on the "insignificant" case of Margaret Rule and his contact over it with Calef.
In an essay from 1985, Harold Jantz writes "TJ Holmes at times deeply regretted having descended into this 'vast Mather bog' ... and he earnestly warned a very young man to stay clear of it.
"[45] The reflections by Jantz about TJ Holmes followed the discovery that a typescript copy of a September 2, 1692 letter from Cotton Mather to Chief Justice William Stoughton was authentic, and the heretofore missing "holograph" had been located and placed in the archives[46] The September 2, 1692 letter strongly supports Robert Calef's view of Cotton Mather.
Jantz had previously (in the same essay) dismissed this letter as a "nasty, psychopathological" forgery and in this view he seems to have perhaps been joined by other neo-credulous scholars of the mid 20th century, including K. Silverman, Chadwick Hansen (see below) and D.
[48] Writing in 1953, Perry Miller quotes SE Morison as saying "Robert Calef tied a tin can to Cotton Mather which has rattled and banged through the pages of superficial and popular historians ... My account is not popular and I strive to make it not superficial", and if qualified to the terms of his thesis, "the right can was tied to the proper tail, and through the pages of this volume it shall rattle and bang", Miller posits.
[53] A key part of Chadwick Hansen's analysis appears to be based on his misunderstanding of the archaic or less commonly used word "bed-clothes" which Oxford English Dictionary defines as "sheets and blankets" with examples from period literature.
"[57] Kenneth Silverman also echos Hansen's mistake, writing "Calef's account clearly implies that Rule was partly naked.