The Aztec, New Mexico, UFO incident (sometimes known as the "other Roswell") was a flying saucer crash alleged to have happened in 1948 in Aztec, New Mexico.
 The story was first published in 1949 by author Frank Scully in his Variety magazine columns, and later in his 1950 book "Behind the Flying Saucers".
 In the mid 1950s, the story was exposed as a hoax fabricated by two confidence men, Silas M. Newton and Leo A. Gebauer as part of a fraudulent scheme to sell supposed alien technology.
 Beginning in the 1970s, some Ufologists resurrected the story in books claiming the purported crash was real.
 In 2013, an FBI memo claimed by some Ufologists to substantiate the crash story was dismissed by the bureau as "a second- or third-hand claim that we never investigated".
Ben Wilson (June 23, 1913 – November 9, 2001) was an American artist known for his early, expressionistic paintings from the mid 1930s to the mid 1950s and his subsequent non-objective paintings, a personal synthesis of Abstract Expressionism and Constructivism.
 He is generally considered a second-generation Abstract Expressionist.
Nam Suk Lee (June 28, 1925 – August 29, 2000) born in the city of Yeo Joo, is credited with co-founding the traditional Korean martial art of Chang Moo Kwan in the mid-1940s, and then promoting and expanding it globally.
 Chang Moo Kwan was one of the five original Kwans which became Tae Kwon Do in the mid 1950s.
 In his later life Nam Suk Lee was to make the seaside community of San Pedro, California his home, where he reestablished his traditional roots in Chang Moo Kwan.
 He was 75 and still actively teaching Chang Moo Kwan through the San Pedro YMCA.
 Nam Suk Lee died in the neighboring Southern California community of Torrance on August 29, 2000, due to a stroke.
George Booth Post (September 29, 1906 – March 26, 1997) was an American watercolorist and art educator.
 He was an important contributor of the California style watercolor movement (also known as the California School of watercolor) of the mid 1920s until the mid 1950s.
Frichs is a Danish company based in Horsens, founded in 1854 in Aarhus.
 Frichs today produce ship engines but started out in the 19th century producing a long range of farm and industry equipment, ships, church bells, cranes and later through the 20th century locomotives and train carriages.
 In the early to mid 20th century it was a major company and employer in Aarhus at its height employing some 1000 people.
 The company was the sole Danish supplier of locomotives for the Danish State Railways from 1919 to the mid 1950s and sold locomotives across Europe and to Siam and New Zealand.
 In 1980 the company was sold to "Kosan" and then restructured and rebased to Horsens.
The Aliens Restriction (Amendment) Act 1919 (9 & 10 Geo 5 c 92) is an Act of the Parliament of the United Kingdom originally aimed at continuing and extending the provisions of the Aliens Restriction Act 1914 and the British Nationality and Status of Aliens Act 1914 and to deal with former enemy aliens after the end of the First World War.
Albert Andrew Muwalo Gandale Nqumayo (1927 – 1977) was a prominent politician in Malawi from the 1960s until he lost power in 1976 and was executed in 1977.
 He entered politics in the mid 1950s through involvement in a hospital worker's trade union and membership of the Nyasaland African Congress, where his activities led to his detention without trial during the 1959 State of Emergency in Nyasaland.
 After his release, he joined the Malawi Congress Party (MCP), and became locally prominent in Ntcheu District as district MCP chairman and from 1962 as Member of Parliament for Ntcheu South.
 In 1963, he became Administrative Secretary of the MCP, and he was a prominent supporter of the then-Prime Minister, Hastings Banda during the Cabinet Crisis of 1964.
 Muwalo was rewarded for his loyalty with the cabinet post of Minister of Information in 1964, and in 1966 he became Minister of State in the President's Office.
 His close contact with Banda, both as minister in Banda's office and in the MCP gave him great power and, during the first half of the 1970s he and his relative, the Head of the Police Special Branch Focus Gwede, were heavily involved in the political repression of actual or suspected opponents of the Banda regime.
 In 1976 he and Gwede were arrested: the reasons for their arrests were unclear, but may have resulted from a power struggle among those around the ageing president or simply because he became too powerful and may have been seen by Banda as a threat.
 In 1977, the two were tried before a Traditional Court and after a trial whose fairness was in serious doubt, were both sentenced to death.
 Gwede was reprieved, but Muwalo was hanged on 3 September 1977.
In UFOlogy, Nordic aliens are humanoid extraterrestrials purported to come from the Pleiades who resemble Nordic-Scandinavians.
 Professed contactees describe them as typically male, six to seven feet tall (about two meters) with long blonde hair, blue eyes, and skin tones ranging from fair to tanned.
 UFOlogist George Adamski is credited with being among the first to claim contact with Nordic aliens in the mid 1950s, and scholars note the mythology of extraterrestrial visitation from beings with features described as Aryan often include claims of telepathy, benevolence, and physical beauty.
Chancellor and Patrick was a Melbourne based architecture firm, formed in 1953 and dissolved in 1981, is best known for their numerous houses from the mid 1950s to the mid 1960s, designed in their signature dynamic, expressive take on 'organic' architecture.
George Adamski (17 April 1891 – 23 April 1965) was a Polish American citizen who became widely known in ufology circles, and to some degree in popular culture, after he claimed to have photographed spaceships from other planets, met with friendly Nordic alien Space Brothers, and to have taken flights with them to the Moon and other planets.

Question: What is the nationality of UFOlogist who is credited with being among the first to claim contact with Nordic aliens in the mid 1950s?
Answer: Polish American citizen