Editing 1859 (section)

=== January–June ===
* [[January 19]] – [[George Schonswar]], British politician (b. [[1775]])
* [[January 21]] – [[Henry Hallam]], English historian (b. [[1777]])
* [[January 28]] – [[F. J. Robinson, 1st Viscount Goderich]], [[Prime Minister of the United Kingdom]] (b. [[1782]])
* [[February 13]] – [[Eliza Acton]], English poet, cookery writer (b. [[1799]])<ref>{{cite book |title=An encyclopedia of British women writers |date=1998 |publisher=Rutgers University Press |location=New Brunswick, N.J. |isbn=0813525438 |page=1 |edition=Rev. and expanded}}</ref>
* [[February 27]] – [[Philip Barton Key II|Philip Barton Key]], U.S. [[District Attorney]] (b. [[1818]])
* [[April 8]] – [[Joseph Thackwell|Sir Joseph Thackwell]], British army general (b. [[1781]])
* [[April 16]] – [[Alexis de Tocqueville]], French historian (b. [[1805]])
* [[May 6]] – [[Alexander von Humboldt]], German naturalist and geographer (b. [[1769]])<ref>{{cite journal|first= William T.|last= Stearn|title= Alexander von Humboldt (1769-1859) and plant geography|journal=New Scientist|url=https://books.google.com/books?id=D4vW1EuQHY0C&pg=PA957|publisher=Reed Business Information|pages=957|date=30 April 1959|access-date=March 19, 2023}}</ref>
* [[May 13]]  – [[Bakht Khan]], commander-in-chief of [[India]]n rebel forces in the [[Indian Rebellion of 1857]]  (b. [[1797]])
* [[June 11]] – [[Klemens Wenzel von Metternich]], Austrian diplomat (b. [[1773]])
* [[June 13]] – [[Angélique Brûlon]], French soldier, first female Knight of the French Legion of Honour (b. [[1772]])
* [[June 23]] – [[Grand Duchess Maria Pavlovna of Russia (1786–1859)|Maria Pavlovna, Dowager Grand Duchess of Saxe-Weimar-Eisenach]] (b. [[1786]])