Mystery Atlas
Person1774 – disappeared 1826

William Morgan

A Freemason from Batavia, New York, whose 1826 disappearance after announcing plans to publish a Masonic exposé triggered a national backlash against Freemasonry and the founding of the Anti-Masonic Party.

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Organisations & Programmes

  • Freemasonry1717–present

    William Morgan was a member of Freemasonry.

  • Anti-Masonic Party1827–1838

    William Morgan influenced Anti-Masonic Party — Morgan's September 1826 disappearance directly triggered the party's February 1827 formation.

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Who Are the Freemasons, and Why Are They a Target of Conspiracy Theories?

Who the Freemasons are: the real 1717 fraternal order, the 1826 William Morgan affair, and why the group keeps appearing in conspiracy theories.