* 1939 – 1945, the Second Battle of the Atlantic.

Subsequent formalizations were framed as attempts to define " effective calculability " or " effective method "; those formalizations included the Gödel – Herbrand – Kleene recursive functions of 1930, 1934 and 1935, Alonzo Church's lambda calculus of 1936, Emil Post's " Formulation 1 " of 1936, and Alan Turing's Turing machines of 1936 – 7 and 1939.

* 1890 – Anthony Fokker, Dutch aviation engineer ( d. 1939 )

* 1939 – André Ouellet, French-Canadian politician

* 1852 – Ferdinand von Lindemann, German mathematician ( d. 1939 )

* 1939 – Alan Ayckbourn, English writer

* 1939 – Johnny Raper, Australian rugby league footballer

* 1939 – The 1939-40 New York World's Fair opens.

* 1939 – NBC inaugurates its regularly scheduled television service in New York City, broadcasting President Franklin D. Roosevelt's N. Y. World's Fair opening day ceremonial address.

* 1939 – First flight of the turbojet-powered Heinkel He 178, the world's first jet aircraft.

* 1939 – William Least Heat-Moon, American author

* 1939 – Edward Patten, American singer-songwriter and producer ( Gladys Knight & the Pips ) ( d. 2005 )

* 1939 – Bulle Ogier, French actress

* 1939 – Romano Prodi, Italian politician and statesman

* 1939 – Hércules Brito Ruas, Brazilian footballer

* 1939 – Albert Einstein and Leó Szilárd write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.

* 1939 – Benjamin Barber, American theorist

* 1939 – Wes Craven, American director

* 1939 – John W. Snow, American politician, 73rd United States Secretary of the Treasury

* 1984 – Marvin Gaye, American singer ( The Moonglows ) ( b. 1939 )

* 2001 – Trinh Cong Son, Vietnamese composer ( b. 1939 )

Eastern European theorists include Pyotr Stolypin ( 1862 – 1911 ) and Alexander Chayanov ( 1888 – 1939 ) in Russia ; Adolph Wagner ( 1835 – 1917 ), and Karl Oldenberg in Germany, and Bolesław Limanowski ( 1835 – 1935 ) in Poland.

Mountbatten's qualification for offering advice to this particular heir to the throne was unique ; it was he who had arranged the visit of King George VI and Queen Elizabeth to Dartmouth Royal Naval College on 22 July 1939, taking care to include the young Princesses Elizabeth and Margaret in the invitation, but assigning his nephew, Cadet Prince Philip of Greece, to keep them amused while their parents toured the facility.

Lineker was born in Leicester to Barry and Margaret Lineker ( both born 1939 ).

From a private letter from journalist Susan Myrick to Margaret Mitchell in February 1939: " George finally told me all about it.

After the completion of his courses, Alexander, on 14 October 1931, married Lady Margaret Bingham, the daughter of the Earl of Lucan and with whom Alexander had two sons — Shane, born 1935, and Brian, born 1939 — and a daughter, as well as adopting another daughter during his time as Canada's governor general.

* Gone with the Wind by Margaret Mitchell and the film – " Frankly, my dear, I don't give a damn ", said in 1939, was among the first uses of profanity in a major American film.

As a result, on 2 September 1939, three school girls, Margaret, Mary and Katherine, came to live at The Kilns in Risinghurst, Lewis ' home three miles east of Oxford city centre.

Earlier books such as What Every Girl Should Know ( Margaret Sanger, 1920 ) and A Marriage Manual ( Hannah and Abraham Stone, 1939 ) had broken the silence in which many people, women in particular, had grown up in.

At the outbreak of World War II, Margaret and her sister were at Birkhall, on the Balmoral Castle estate, where they stayed until Christmas 1939 enduring nights so cold that drinking water in carafes by their bedside froze.

Leone was also an avid fan of Margaret Mitchell's novel Gone with the Wind and the 1939 film adaptation.

Guests included Morticia's older sister Ophelia ( also played by Carolyn Jones in the original television series ), Morticia's cousin Melancholia, and Morticia's mother Hester Frump ( played in the 1960s series by Margaret Hamilton, wearing her Miss Almira Gulch dress from the 1939 movie The Wizard of Oz ).

Margaret Eleanor Atwood, ( born November 18, 1939 ) is a Canadian poet, novelist, literary critic, essayist, and environmental activist.

Parts of Margaret Mitchell's epic 1936 novel Gone with the Wind and the famous 1939 motion picture Gone with the Wind were set in Clayton County, including the location of the fictional plantation, Tara.

In late August 1939, shortly before war was declared, Joyce and his wife Margaret fled to Germany.

He was widely known to have had a drinking problem, according to several who worked with him, including actress Margaret Hamilton ( the Wicked Witch of the West in The Wizard of Oz, 1939 ) and " Oz " historian Aljean Harmetz.

In the 1936 novel by Margaret Mitchell and the 1939 film Gone with the Wind, Rhett Butler decides to call his newborn daughter " Bonnie Blue Butler " when Melanie Wilkes remarks that her eyes are " as blue as the Bonnie Blue

In 1939, at the age of 19, O ' Hara secretly married Englishman George H. Brown, a film producer, production assistant and occasional scriptwriter whose best known work is the first of Margaret Rutherford's 1960s Miss Marple mysteries, Murder She Said.

On 2 September 1939 three school girls: Margaret, Mary and Katherine, came to live at The Kilns in Risinghurst, Lewis's home three miles east of Oxford city centre.

She portrayed the role of the Wicked Witch of the West, played by Margaret Hamilton in the 1939 film.

However the name only became common in English usage in the 1930s due to the popularity of Margaret Mitchell's 1936 novel Gone with the Wind and its 1939 filmation, as one of the novel's main characters was named Melanie Hamilton.

Helen Margaret Jackson CBE ( née Price, born 19 May 1939 ) is a British politician.

In 1939, at the age of 45 and with eyesight which continued to deteriorate, he happened to hear of the Bates method and sought the help of Margaret Corbett, who gave him regular lessons.

Bryan married Margaret Lane ( 1907 – 94 ), the distinguished British writer, in 1934 but the marriage was short-lived ending in 1939.

Caldwell was married to photographer Margaret Bourke-White from 1939 to 1942, and they collaborated on three photo-documentaries: You Have Seen Their Faces ( 1937 ), North of the Danube ( 1939 ), and Say, Is This The USA ( 1941 ).