Muñoz de Salazar, Spanish nobleman, politician, and Prime Minister of Spain (b. 1856) Thomas Scott Baldwin, American balloonist, general (b. 1854) Duke Paul Frederick of Mecklenburg (b. 1852) May 21 Hans Goldschmidt, German chemist (b. 1861) Charles Kent, British actor (b. 1852) May 23 – Nicola Barbato, Italian doctor, socialist and politician (b. 1856) May 29 – Albert Deullin, French flying ace of World War I (b. 1890) June June 4 Alexander Milne Calder, Scottish-born American sculptor (b. 1846) Filippo Smaldone, Italian Roman Catholic priest, saint (b. 1848) June 5 – Carl von Horn, German general (b. 1847) June 9 Takeo Arishima, Japanese novelist, writer and essayist (b. 1878) Princess Helena of the United Kingdom, third daughter of Queen Victoria (b. 1846) June 10 – Pierre Loti, French writer, naval officer (b. 1850) June 12 – Kate Bishop, English actress (b. 1848) June 14 Isabelle Bogelot, French philanthropist (b. 1838) Aleksandar Stamboliyski, 20th Prime Minister of Bulgaria (assassinated) (b. 1879) June 17 – Alexis-Xyste Bernard, Canadian Catholic bishop (b. 1847) June 18 – Hristo Smirnenski, Bulgarian poet (b. 1898) June 20 – Princess Marie of Battenberg (b. 1852) June 23 – Keiichi Aichi, Japanese physicist (b. 1880) June 24 – Edith Södergran, Finnish author (b. 1892) July July 9 – William R. Day, American lawyer and diplomat, Associate Justice of the Supreme Court of the United States (b. 1849) July 10 – Albert Chevalier, British music hall comedian (b. 1861) July 12 – Ernst Otto Beckmann, German pharmacist, chemist (b. 1853) July 15 – Janey Sevilla Callander, British producer (b. 1846) July 17 – Theodor Rosetti, 16th Prime Minister of Romania (b. 1837) July 19 – Auguste Bouché-Leclercq, French historian (b. 1842) July 20 – Pancho Villa, Mexican revolutionary (assassinated) (b. 1878) July 23 – Charles Dupuy, French statesman, Prime Minister of France (b. 1851) July 30 – Sir Charles Hawtrey, British actor (b. 1858) August August 1 – Pierre Brizon, French teacher, deputy and pacifist (b. 1878) August 2 – Warren G. Harding, American politician, 29th President of the United States (b. 1865) August 5 – Vatroslav Jagić, Croatian scholar (b. 1838) August 9 – Victor II, Duke of Ratibor (b. 1847) August 10 – Joaquín Sorolla, Spanish painter (b. 1863) August 19 – Vilfredo Pareto, Italian economist (b. 1848) August 21 – Sir William Meredith, Canadian politician and judge (b. 1840) August 23 Ernest Francis Bashford, British oncologist