- Sep 1 Reynier de Klerk, governor-general of Dutch-Indies (1777-1800), dies at 69
- Sep 4 John Fielding, English magistrate and social reformer (b. 1721)
William Allen
Sep 6 William Allen, American loyalist, Chief Justice of the Province of Pennsylvania and Mayor of Philadelphia, dies at 76
- Sep 8 Enoch Poor, American Revolutionary War general, dies at 44