Question: Are Sherwood Stewart and Ekaterina Makarova from the same country?

Context articles: Sherwood Stewart
Nigel Sears
2013 US Open – Mixed Doubles
Ekaterina Makarova
2013 French Open – Women's Doubles
2009 China Open – Women's Doubles
2013 China Open – Women's Doubles
2012 US Open – Mixed Doubles
2013 Kremlin Cup – Women's Doubles
2015 US Open – Women's Doubles

Sherwood Stewart (born June 6, 1946, in Goose Creek, Texas, United States) played amateur and professional tennis in the 1970s and 1980s.
 Stewart was ranked as high as No. 60 in the world in singles on the ATP Rankings on December 31, 1978, and No. 4 in doubles on January 3, 1983.
Nigel Sears (born 4 April 1957) is a British tennis coach, best known for coaching former top five players Amanda Coetzer, Daniela Hantuchová and Ana Ivanovic during his long career.
 He is currently the coach of Ekaterina Makarova.
Ekaterina Makarova and Bruno Soares were the defending champions, but Makarova decided not to participate.
 Soares played with Anabel Medina Garrigues, but lost to Abigail Spears and Santiago González in the semifinals.
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Ekaterina Valeryevna Makarova (Russian: Екатери́на Вале́рьевна Мака́рова ; ] ; born on 7 June 1988) is a Russian professional tennis player.
 She achieved her career-high ranking of number 8 on 6 April 2015.
 Her best Grand Slam singles results have come at the 2014 US Open and the 2015 Australian Open where she reached the semifinals on both occasions.
 Makarova is a four-time Grand Slam champion in doubles competition, having won the 2012 US Open mixed doubles tournament with Bruno Soares, and the 2013 French Open, the 2014 US Open and 2017 Wimbledon Championships with Elena Vesnina.
Sara Errani and Roberta Vinci were the defending champions, but lost in the final to Ekaterina Makarova and Elena Vesnina 5–7, 2–6.
Anabel Medina Garrigues and Caroline Wozniacki were the defending champion, but Wozniacki chose not to participate this year.Medina Garrigues partnered with Virginia Ruano Pascual, but they lost in the second round against Anastasia Pavlyuchenkova and Yanina Wickmayer.
Hsieh Su-Wei and Peng Shuai won in the final 6-3, 6-1 against Alla Kudryavtseva and Ekaterina Makarova.
Ekaterina Makarova and Elena Vesnina were the defending champions, but Makarova withdrew due to injury.
 Vesnina was scheduled to partner with Marina Erakovic, but Erakovic withdrew before the first round for personal reasons.
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Melanie Oudin and Jack Sock were the defending champions but lost to Sania Mirza and Colin Fleming in the second round.
 <br> Kim Clijsters played her last professional match, in any format, losing in the second round with Bob Bryan to Ekaterina Makarova and Bruno Soares.
 Unseeded pair Makarova and Soares ended up winning the title after defeating fourth seeds Květa Peschke and Marcin Matkowski in the final 6–7, 6–1, [12–10].
Ekaterina Makarova and Elena Vesnina were the defending champions, but Makarova withdrew due to injury.
 Vesnina partnered up with Daniela Hantuchová, but they retired in the quarterfinals due to Hantuchová's injury.
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Ekaterina Makarova and Elena Vesnina were the defending champions, but Makarova decided not to participate.
 Vesnina played alongside Eugenie Bouchard, but they withdrew from their second round match because of a concussion sustained by Bouchard.