Question: Elvira Madigan's father was born in what year?

Context paragraphs:
Paul J. Madigan: Paul Joseph Madigan (March 13, 1897 – December 25, 1974) was the third warden of Alcatraz Federal Penitentiary, which was situated on Alcatraz Island, California, US.  He was born in Maple Lake, Minnesota in 1897.  Madigan served as warden of Alcatraz from 1955 to 1961, and had earlier served as the last Associate Warden during the term of James A. Johnston, the first Warden of Alcatraz.  He has been cited as the only warden who had worked his way up from the bottom of the ranks of the prison staff hierarchy, having worked originally as a Correctional Officer on Alcatraz from the 1930s.  In May 21, 1941, Madigan was a key to quashing an escape attempt after being held hostage in the Model Industries Building, and later led to a promotion as associate warden.  He was a stout, ruddy-faced, pipe-smoking, devout Irish Catholic.  Unlike his predecessors, Madigan was known for being more lenient and softer in his approach to administering the prison and was better liked by the prison staff.  During his term as warden from January 1955, there was a movement underway headed by the likes of James V. Bennett to close Alcatraz and replace with a new centralized penitentiary; the decision was finalized in 1961, the year Madigan's term ended, and Alcatraz was closed two years later.

Elvira Abdić-Jelenović: Elvira Abdić-Jelenović (born 7 September 1967) is a Bosnian politician and Croat representative in the House of Peoples of the Parliament of the Federation of Bosnia and Herzegovina.  She is the president of the Labour Party of Bosnia and Herzegovina, founded in 2013.  Prior to that, she was a long-year member of the Democratic People's Union, a party founded by her father Fikret Abdić, from which she and her father were banned after internal changes within the party.

Danila Izotov: Danila Sergeevich Izotov (Russian: Данила Сергеевич Изотов ; born 2 October 1991) is a Russian swimmer, a member of the Russian National team since 2008, and a multiple medalist at the Olympic Games and World Championships, as well as a European champion.  He is coached by his father, Sergey Alexandrovich Izotov.  He is the nephew of soviet swimmer Elvira Vasilkova.

Elvira Madigan (1943 film): Elvira Madigan is a 1943 Swedish romantic drama film directed by Ake Ohberg.  The film is based on the famous true story of Elvira Madigan.  The film stars Eva Henning and Åke Ohberg.

Pablo Elvira: Pablo Elvira (September 24, 1937 – February 5, 2000) was a Puerto Rican baritone.  Elvira was born in San Juan, Puerto Rico, and began his musical career playing jazz trumpet there, with his uncle, Rafael Elvira, in his orchestra, he continued in his father's band and later started his own band who played at the Hotel San Juan.  In 1966, he joined the voice faculty of the Indiana University School of Music; during his eight years there he performed baritone roles in many of the school's opera productions.

Elvira Madigan (1967 film): Elvira Madigan is a 1967 Swedish film directed by Bo Widerberg, based on the tragedy of the Danish tightrope dancer Hedvig Jensen (born 1867), working under the stage name of Elvira Madigan at her stepfather's travelling circus, who runs away with the Swedish nobleman lieutenant Sixten Sparre (born 1854).

Gisela Brož: Gisela Antonia Brož (Brosch) (also sometimes referred to as Gisela Madigan), (4 April 1865 - 1945) was an Austrian-American circus performer, tight rope dancer, and clown.  Her parents were shoemaker Joseph Brož and his wife Maria.  She went to convent school in Siebenbürgen and at the age of 15 she got to know the circus family Madigans with John and Laura who at that time toured with circus Krembser in Vienna.  Gisela became their foster child and got to learn tight rope dancing, this along with the couple's two year younger daughter Elvira Madigan.

Elvira Madigan: Elvira Madigan (4 December 1867 – 19 July 1889) was the stage name of a Danish tightrope walker and trick rider, whose illicit affair and dramatic death were the subject of the Swedish film of 1967.

John Madigan (ringmaster): John Adalbert Madigan, (12 August 1850 - 23 August 1897) was an American circus performer and ringmaster, during the later years of his life he worked in Scandinavia.  He was raised in an American circus family of Irish background.  He is known for his work in U.S circus scenes between 1866 and 1869, but from 1872 he worked at Cirkus Myers in Central Europe.  To this circus, the Swedish-Norwegian circus artist Eleonora Olsen, later known as Laura Madigan (mother of Elvira Madigan) came to work in 1875, the two became a couple.

Marianne Löfgren: Marianne Löfgren (24 February 1910 – 4 September 1957) was a Swedish actress.  She played in Åke Ohberg's "Elvira Madigan" (1943), director Ingmar Bergman's debut "Crisis" in 1946, Hasse Ekman's "Girl with Hyacinths" (1950) and in over a hundred other films in her native Sweden.

Supporting paragraphs: Gisela Brož John Madigan (ringmaster)
Answer: 1850