- Oct 1 Charles Tennant, Scottish chemist and industrialist, dies at 70
- Oct 3 Black Hawk, Sauk leader and warrior (Black Hawk War) who published the 1st US Native American autobiography (Ma-Ka-Tai-Me-She-Kia-Kiak or Black Hawk, Embracing the Traditions of his Nation), dies at 70 or 71
- Oct 4 Eleanore Sophia Maria Westenholz, German composer, dies at 79
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide