- Oct 3 Lucy Hobbs Taylor, 1st American woman dentist (1866), and women's rights activist, dies at 77
- Oct 10 Willem Maris, Dutch painter (Hague School), dies at 66
- Oct 15 Larkin Goldsmith Mead, American sculptor who worked in Florence, dies at 75
- Oct 15 Stanley Ketchel [The Michigan Assassin], Polish-American heavyweight boxing champion (1908-10), murdered at a ranch in Missouri at 24
- Oct 17 Julia Ward Howe, American poet (Battle Hymn of the Republic), author, abolitionist, and women's suffragist, dies of pneumonia at 91
- Oct 17 Sergey Muromtsev, Russian lawyer, politician and President of the First Imperial Duma, dies at 60
- Oct 17 William V Moody, American poet (Sabine Woman, Great Divide), dies
- Oct 20 David B. Hill, American politician and Governor of New York (1885-91), dies at 67
- Oct 23 Rama V [Chulalongkorn], King of Thailand (1868-1910), dies at 57
- Oct 25 Hermann Kipper, German music teacher and composer, dies at 84
- Oct 25 Willie Anderson, Scottish golfer (US Open 1901, 1903-05), dies of epilepsy at 31
- Oct 30 Henri Dunant, Swiss humanitarian, Founder of Red Cross (Nobel 1901), dies at 82
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide