- Sep 6 Friedrich Wilhelm von Schadow, German painter (Modern Vasari), born in Berlin (d. 1862)
- Sep 10 Jacques Boucher de Crèvecœur de Perthes, French archaeologist (discovered flint tools in the gravels of the Somme valley), born in Rethel, Ardennes, France (d. 1868)
- Sep 12 Alexander Campbell, Irish-American clergyman and Founder of Disciples of Christ, born in Ballymena, County Antrim, Ireland (d. 1866)
- Sep 21 Margaret Taylor (née Smith), wife of Zachary Taylor and 1st lady of the United States (1849-50), born in Calvert County, Maryland (d. 1852)
- Sep 22 Theodore Hook, English author, famous practical joker and recipient of the world's 1st postcard, born in London (d. 1841)
- Sep 30 FitzRoy Somerset, 1st Baron Raglan, British Army officer (commander of the British forces during the Crimean War), born in Badminton, England (d. 1855)