2 – Samuel Morse, American inventor (b. 1791) April 16 – Adolf von Bonin, Prussian general (b. 1803) June 4 Stanisław Moniuszko, Polish composer (b. 1819) Johan Rudolph Thorbecke, Dutch politician (b. 1798) June 20 – Élie Frédéric Forey, Marshal of France (b. 1804) July–December July 15 – Mary Eliza Herbert, Canadian publisher and writer (b. 1829) July 18 – Benito Juárez, President of Mexico (1858-1872), of a heart attack (b. 1806) September 1 – Robert Gray, first Bishop of Cape Town (b. 1809) September 10 – Avram Iancu, Romanian Transylvanian insurgent (b. 1824) September 13 – Ludwig Feuerbach, German philosopher (b. 1804) September 18 – Charles XV, King of Sweden and Norway (b. 1826) September 18 – Ana María Martínez de Nisser, Colombian heroine, writer (b. 1812) October 4 – Vladimir Dal, Russian lexicographer (b. 1801) October 10 – William H. Seward, 24th United States Secretary of State (b. 1801) October 23 – Théophile Gautier, French writer (b. 1811) October 25 – William F. Johnston, American politician (b. 1808) November 6 – George Meade, American Civil War general (b. 1815) November 23 – Sir John Bowring, British colonial administrator, 4th Governor of Hong Kong (b. 1792) November 28 – Mary Somerville, British mathematician (b. 1780) November 29 – Horace Greeley, American newspaper editor, Democratic presidential candidate (b. 1811) December 15 – Lady Beaconsfield, wife of Benjamin Disraeli (b. 1792) December 31 – Aleksis Kivi, Finnish national author (b. 1834) References Sources + via Google Books Leap years in the Gregorian calendar