- Sep 4 Andreas Ignatius Schaepman, Archbishop of Utrecht (1868-82), born in Zwolle, Netherlands (d. 1882)
- Sep 4 Mihály Mosonyi, Hungarian composer, born in Boldogasszony, Austria-Hungary (d. 1870)
- Sep 5 Karl Wilhelm, German composer, born in Schmalkalden, Germany (d. 1873)
- Sep 5 Tyree Harris Bell, Brigadier General (Confederate Army), born in Covington, Kentucky (d. 1902)
- Sep 6 St. John Richardson Liddell, American Civil War Confederate General, born in Wilkinson County, Mississippi (d. 1870)
- Sep 7 Howell Cobb, American politician (U.S. Secretary of Treasury), born in Jefferson County, Georgia (d. 1868)
- Sep 7 John McDouall Stuart, Australian explorer, born in Dysart, Fife, Scotland (d. 1866)
- Sep 8 Alexander Ramsey, American politician (1st Governor of Minnesota Territory), born in Hummelstown, Pennsylvania (d. 1903)
- Sep 10 Eleazer Arthur Paine, American Brigadier General (Union Army), born in Geauga County, Ohio (d. 1882)
- Sep 17 Halfdan Kjerulf, Norwegian composer (Brudefaerden i Hardanger), born in Christiania, Norway (d. 1868)
- Sep 18 Henry C. Wayne, American Brigadier General (Confederate Army), born in Savannah, Georgia (d. 1883)
- Sep 29 Andreas Aschenbach, German Romantic painter and engraver, born in Kassel (d. 1910)