Editing 1939 in science (section)

==Deaths==
* February 4 – [[Edward Sapir]] (born 1884), American anthropological linguist.
* February 12 – [[S. P. L. Sørensen]] (born 1868), [[Danes|Danish]] [[chemist]].
* March 6
** [[Cuthbert Hilton Golding-Bird]] (born 1848), English [[surgeon]].
** [[Dorothea Pertz]] (born 1859), English [[botanist]].
*April 26 – [[Anne Walter Fearn]] (born 1867), American physician.<ref>{{cite book|first=Philips|last=Clifton J.|chapter=Fearn, Anne Walter|editor-first=Edward T.|editor-last=James|title=Notable American Women, 1607-1950: A Biographical Dictionary|volume=1|year=1971|isbn=978-0-67462-734-5|page=603}}</ref>
* May 14 – [[Fanny Searls]] (born 1851), American botanist.<ref>{{cite journal |last=Tiehm |first=Arnold |title=Fanny Searls (1851-1939)| journal=Brittonia |volume=37 |number=1 |year=1985 |page=42| doi=10.1007/BF02809668|s2cid=87755152}}</ref>
* July 15 – [[Eugen Bleuler]] (born 1857), [[Switzerland|Swiss]] [[psychiatrist]].
* September 23 – [[Sigmund Freud]] (born 1856), [[Austrians|Austrian]]-born [[psychoanalyst]].
* October 7 – [[Harvey Cushing]] (born 1869), American [[neurosurgeon]].