George Wald
George Wald( November 18, 1906 – April 12, 1997) was an American scientist who studied pigments in the retina.
He won a share of the 1967 Nobel Prize in Physiology or Medicine with Haldan Keffer Hartline and Ragnar Granit.
Yi Kyu-won
Lee Kyu-won (Hanja: 李奎遠; 19 March 1833 – 11 November 1901) was a military official in the Joseon Dynasty.
King Gojong appointed Lee Kyu-won as a Royal Prosecutor for Ulleungdo Island in 1881.
He drafted the official report to King Gojong.
Lee Kyu-won
Lee Kyu-Won (Korean: 이규원, Hanja: 李奎遠, born February 14, 1989) is a male judoka from South Korea, whose biggest success so far was winning the world title at the age of 19 at the 2009 World Championships in Rotterdam, Netherlands.
Oh Kyu-won
Oh Kyu Won( December 29, 1941 – February 2, 2007) was a South Korean writer.
Kim Kyu-won
Kim Kyu- won is a South Korean biologist.
Oh Kyu-bin
Oh Kyu-bin( born 4 September 1992) is a South Korean professional footballer
Iosif Mendelssohn
Iosif( Josef) Mendelssohn was a Romanian chess master.
At the beginning of his career, he took 7th at Debrecen 1913 and tied for 4- 5th at Kaschau 1918, both in B tournaments.
After World War I, Mendelssohn played in many tournaments in Bucharest.
He took 5th in 1924( Sigmund Herland won), took 3rd(" Quadrangular", Alexandru Tyroler won) and shared 1st with Herland in 1925, tied for 4- 6th in Romanian Chess Championship( Tyroler won) and tied for 7- 8th( Wechsler won) in 1927, took 5th( Taubmann won) and took 3rd( Herland and Wechsler won) in 1928, shared 1st with Wechsler and tied for 3 rd- 4th( Gudju won) in 1929, took 5th( Abraham Baratz won), took 2nd( behind Herland), took 3rd(" Quadrangular", Taubmann won), and finally won in 1930.
He also took 4th at Jassy( Iaşi) 1929( ROM-ch, Tyroler won), and took 6th at Cernăuţi 1930( ROM-ch, János Balogh won).
Mendelssohn played for Romania in 2nd unofficial Chess Olympiad at Budapest 1926, and won team bronze medal there.
Kyu Won Han
Kyu-Won Han is a Korean-American baritone who has had an active international opera career for the last two decades.
Ragnar Hult
Ragnar Hult (4 March 1857 – 25 September 1899) was a Finnish botanist and plant geographer.
He was a forerunner in developing a methodology for vegetation survey.
He emphasized the physiognomy of vegetation and paid less attention to its ecology.
His ideas were much-followed in Sweden, making him the real father of the "Uppsala school" in plant sociology.
Ragnar Hult was the first (1881) to publish a comprehensive study of ecological succession as it is taking place in a given region.
He was the first to recognize that a relatively large number of pioneer plant communities give way to a comparatively small number of relatively stable communities.
Haldan Keffer Hartline
Haldan Keffer Hartline( December 22, 1903 – March 17, 1983) was an American physiologist who was a co-recipient( with George Wald and Ragnar Granit) of the 1967 Nobel Prize in Physiology or Medicine for his work in analyzing the neurophysiological mechanisms of vision.

Question: Were Oh Kyu-Won and Ragnar Hult from the same country?
Answer: no