Editing 1843 (section)

=== October ===
* [[October 2]] – [[James Whitney (politician)|James Whitney]], Canadian politician (d. [[1914]])
* [[October 4]] – [[Marie-Alphonsine Danil Ghattas]], Palestinian Catholic nun, canonized (d. [[1927]])
* [[October 9]] – [[Christian Christiansen (physicist)|Christian Christiansen]], Danish physicist (d. [[1917]])
* [[October 10]] – [[François C. Antoine Simon]], 18th president of Haiti (d. [[1923]])
* [[October 12]] – [[Émile Louis Ragonot]], French entomologist (d. [[1895]])
* [[October 13]] – [[René de Lespinasse]], French historian (d. [[1922]])
* [[October 14]] – [[Marcus Beck]], early proponent of the [[germ theory of disease]] (d. [[1893]])
* [[October 15]] – [[Herbert W. Ladd]], American politician and governor of [[Rhode Island]] (d. [[1913]])
* [[October 16]] – [[Johann Friedrich Ahlfeld]], German obstetrician and gynecologist (d. [[1929]])
* [[October 17]] – [[Lot Thomas]], American state court judge (d. [[1905]])
* [[October 19]] – [[Albert Viger]], French politician (d. [[1926]])
* [[October 20]] – [[Victor de Stuers]], Dutch artist (d. [[1916]])
* [[October 22]] – [[Anton Yegorovich von Saltza]], Russian general (d. [[1916]])
* [[October 23]] – [[René de Lespinasse]], French historian (d. [[1922]])
* [[October 24]] – [[Caroline Brown Buell]], American activist (d. [[1927]])
* [[October 25]] – [[Pierre Lallement]], French inventor of the [[bicycle]] (d. [[1891]])
* [[October 26]] – [[Henry Trimen]], British  botanist (d. [[1896]])
* [[October 28]]
** [[Dezső Bánffy]], 12th Prime Minister of Hungary (d. [[1911]])
** [[Herman Bendell]], Physician and last Superintendent of Indian Affairs for the Arizona Territory (d. [[1932]])
* [[October 29]] – [[John Miller (North Dakota politician)|John Miller]] 1st governor of North Dakota (d. [[1908]])
* [[October 31]] – [[Henri Regnault]], French painter (d. [[1871]])