Leo Williams (rugby union)
Leo Gerard Williams AO( 1941 – 14 October 2009) was an Australian rugby union player and official, who played for the Queensland Reds( 1962 – 1965), managed the team( 1971 – 1972), then was president of Queensland Rugby Union( 1988 – 1995), chairman of Australian Rugby Union( 1994 – 1996) and chairman of Rugby World Cup( 1995 – 2000).
Williams was chair of Australian Rugby Union during the formation of SANZAR, a governing body which united ARU with New Zealand Rugby Union and South African Rugby Union and which operates the Super Rugby and Tri Nations championships.
Along with Louis Luyt( South Africa) and Richie Guy( New Zealand), he was one of the signatories to a broadcasting contract with News Limited which signified rugby union's transformation to a professional sport.
Jack Clarke (racing driver)
Jack Clarke( born 1 March 1988 in Effingham, Surrey) is a professional race car driver.
Clarke is the stepson of ex-Formula One and British Touring Car Championship driver Julian Bailey.
Jack Clarke (rugby union)
Jack Clarke( born Kisumu, 2 September 1968) is a former Irish rugby union international player who played as a winger.
He played for Dolphin RFC and for Munster.
He played for the Ireland team from 1991 to 1992, winning 6 caps and scoring one trie.
He was a member of the Ireland squad at the 1991 Rugby World Cup.
Walter Dew
Detective Chief Inspector Walter Dew( 17 April 1863 – 16 December 1947) was a British Metropolitan Police officer who was involved in the hunt for both Jack the Ripper and Dr Crippen.
Igor Grekhov
Igor Vsevolodovich Grekhov( born 10 September 1934 in Smolensk) is a Soviet and Russian physicist and electrical engineer, full member of the Russian Academy of Sciences.
He is known as one of the founders of the power semiconductor device industry in the Soviet Union.
His contributions to the field of pulsed power devices and converter technique were recognized by awarding the Lenin Prize, the two State Prizes and several State orders of Russia.
During several decades he headed the laboratory at the Ioffe Physical Technical Institute in St. Petersburg.
Andre Stoop
Andre Stoop( born 8 October 1960) is a Namibian rugby union and rugby league player.
His position was at fullback.
He has previously played for the Wigan Warriors, and Keighley Cougars.
In 1996, he returned to rugby union and signed for Blackheath.
Anthony Little (rugby)
Andrew Walter Little was a Scottish rugby union and rugby league footballer.
Earl Va'a
Earl Va'a( born 1 May 1972) is a former rugby union and rugby league footballer who played internationally for Samoa.
He has played as a fly- half in union and as a and in league.
Scott Wisemantel
Scott Wisemantel born in 1970, is an Australian rugby union coach, and former player of both rugby union and rugby league.
Steve Rule
Stephen" Steve" Rule( born 5 June 1952) is an English- born former rugby union, and professional rugby league footballer who played in the 1970s and 1980s, and current rugby union coach.
He played representative level rugby union( RU) for English Universities Rugby Union and Cheshire Rugby Football Union, and at club level for Loughborough Students RUFC and Sale, as a fly- half, i.e. number 10, and representative level rugby league( RL) for Wales, and at club level for Salford and St. Helens, as a, i.e. number 1, and coached representative level rugby union( RU) for Cheshire Rugby Football Union, and at club level for Sale, Lymm RFC, New Brighton and Macclesfield RUFC.

Question: Are both Jack Clarke (Rugby Union) and Igor Grekhov from the same country?
Answer: no