List of Famous people who died in 1939

Karl Berngardovich Radek was a Marxist active in the Polish and German social democratic movements before World War I and an international Communist leader in the Soviet Union after the Russian Revolution.

Franz Josef Maria Werner was an Austrian zoologist and explorer. Specializing as a herpetologist and entomologist, Werner described numerous species and other taxa of frogs, snakes, insects, and other organisms.

Otto Berg was a German scientist. He is one of the scientists credited with discovering rhenium, the last element to be discovered having a stable isotope.

Emil Lederer was a Bohemian-born German economist and sociologist. Purged from his position at Humboldt University of Berlin in 1933 for being Jewish, Lederer fled into exile. He helped establish the "University in Exile" at the New School in New York City.

Otto Rudolf Martin Brendel was a German astronomer. Born in Berlin-Niederschönhausen, he obtained the first successful photograph of the aurora borealis at Bossekop in northern Norway in 1892. He died in Freiburg.

Samuel Vernon Stewart was a Democratic Party politician, an attorney, former Montana Supreme Court Justice and the sixth Governor of Montana.

Bronisława Dłuska was a Polish physician, and co-founder and first director of Warsaw's Maria Skłodowska-Curie Institute of Oncology. She was married to political activist Kazimierz Dłuski, and was an older sister of physicist Marie Curie.