Roman Smishko
Roman Smishko is a retired Ukrainian professional footballer who played as a goalkeeper.
He is a younger brother of Ukrainian defender Bohdan Smishko.
Pao-Lu Hsu
Pao- Lu Hsu or Xu Baolu( September 1, 1910 – December 18, 1970) was a Chinese mathematician noted for his work in probability theory and statistics.
Xu Shuzheng
Hsu Seu- Cheng or Xu Shuzheng( 11 November 1880 – 29 December 1925) was a Chinese warlord in Republican China.
A subordinate and right- hand man of Duan Qirui, he was a prominent member of the Anhui clique.
Xu Lili
Xu Lili( born February 18, 1988) is a Chinese judoka from Binzhou, Shandong who made it to the finals in the 2012 Summer Olympics in the category Women's 63 kg, winning a silver medal.
She is the younger sister of Xu Yuhua, also a judoka.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Xu Yuhua (judoka)
Xu Yuhua( born March 2, 1983 in Binzhou, Shandong) is a female Chinese judoka who competed at the 2008 Summer Olympics in the Half middleweight( 57–63 kg) event.
She was eliminated in the first round by a South Korean.
She is the older sister of Xu Lili.
Dmitri Varfolomeyev (footballer, born 1978)
Dmitri Nikolayevich Varfolomeyev( born 15 March 1978 in Leningrad) is a former Russian football player.
He is a younger brother of Sergei Varfolomeyev.
Xu Yuhua
Xu Yuhua( born 29 October 1976) is a Chinese chess grandmaster and former Women's World Champion( 2006 – 2008).
She is China's third women's world chess champion after Xie Jun and Zhu Chen.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Mark Gundrum
Mark Gundrum( born March 20, 1970) is an American politician from the state of Wisconsin.
He has served as a legislator and jurist.
Born in Milwaukee, Wisconsin, Gundrum graduated from Waukesha Catholic Memorial High School, where he played for the school's gridiron football team.
He received his bachelor's and law degrees from the University of Wisconsin – Madison.
Gundrum served on the Hales Corners, Wisconsin village board.
He later worked as a staff attorney for Rudolph T. Randa, a judge for the United States District Court for the Eastern District of Wisconsin.
He joined the United States Army Reserve in 2000, and was deployed to Iraq in 2008.
In 1998, Gundrum won the race to succeed Mary Lazich in the Wisconsin State Assembly as a Republican.
In the 2002 election, he defeated fellow state legislator Marc C. Duff, who ran against Gundrum due to redistricting.
While serving in the Wisconsin State Assembly, Gundrum worked with Steven Avery, who was exonerated after being falsely convicted of a sexual assault, to pass a criminal justice reform bill.
In 2010, Gundrum was elected as a Circuit Court judge for Waukesha County.
He was soon thereafter appointed by Gov. Scott Walker in 2011 to the Wisconsin Court of Appeals.
Gundrum and his wife, Mary, married in 1996.
They are Catholic and have eight children, who they homeschooled through Wisconsin Virtual Academy.
Their youngest child was born with encephalocele and a facial cleft, which required surgery to correct at Boston Children's Hospital.
Gundrum appeared in the 2015 Netflix documentary series" Making a Murderer", detailing Avery's case.
Gundrum was named as one of Governor Scott Walker's finalists to replace Justice David Prosser, Jr. on the Wisconsin Supreme Court in June 2016.

Question: Who is younger, Mark Gundrum or Xu Yuhua?
Answer: Xu Yuhua