François van der Merwe
François van der Merwe is a South African professional rugby union player.
He plays at lock for Lyon Olympique in the Top 14.
He is older brother of Flip van der Merwe
Ognen Stojanovski
Ognen Stojanovski( born January 25, 1984) is a Macedonian professional basketball player.
He was under contract with MZT Skopje until 2014.
He is 1.90 m( 6 ft 3 in) in height and plays at the point guard position.
Born in Skopje, Republic of Macedonia, he is older brother of the twins Vojdan Stojanovski and Damjan Stojanovski, who are also basketball players.
Ada Wallas
Ada Wallas or Ada( or" Audrey")
Radford( 10 December 1859 – 12 October 1934) was an English writer and teacher.
Robin Kačaniklić
Robin Kačaniklić( born 25 August 1988) is a Swedish footballer of Serbian and Macedonian descent who plays for Real Åstorp FF as a Midfielder.
He is older brother to the Hammarby IF and former Swedish national team player Alexander Kačaniklić.
Nikita Lyamin
Nikita Andreyevich Lyamin( born 14 October 1985), or Nikita Liamin, is a Russian beach volleyball player.
He competed at the 2016 Summer Olympics in Rio de Janeiro, in the men's beach volleyball tournament.
Kitty Harris
Kitty Harris( Unknown – 1966) was a Soviet secret agent and" long- time special courier of the OGPU- NKVD foreign intelligence during the 1930s and 1940s."
Harris was identified only in 2001 when her code name" Ada" or" Aida" was found in declassified files from the Venona Project.
This was a counterintelligence program initiated by the United States Army's Signal Intelligence Service( later the National Security Agency) that ran from February 1, 1943 until October 1, 1980.
Gordon Ada
Gordon Leslie Ada AO, FAA( 6 December 1922 – 25 September 2012) was an Australian biochemist best known for his seminal contributions to virology and immunology and his long leadership of the Department of Microbiology at the John Curtin School of Medical Research at the Australian National University, where Peter C. Doherty and Rolf Zinkernagel performed their Nobel winning research in his department.
Both Zinkernagel and Doherty held him in high regard, and he was invited by them to attend the Nobel award ceremony and dinner in Stockholm.
Gordon Ada was born in 1922 in Sydney.
He studied at Fort Street High School, then at the University of Sydney, graduating BSc in 1943, and MSc in 1946.
After completing his Masters he went to London to work for the National Institute for Medical Research, staying in London until 1948.
When he returned to Australia, he conducted research at the Walter and Eliza Hall Institute of Medical Research under director Frank Macfarlane Burnet and was involved in the establishment of the Biochemistry and Biophysics Research Unit with Henry Holden.
At the Hall Institute he initially worked on the viruses that cause influenza and Murray Valley encephalitis.
He was the first to establish that influenza is an RNA virus and was awarded his DSc by the University of Sydney in 1959.
From 1962 he focused on immune reactions, demonstrating that antigens are not present in antibody- producing cells, in support of Burnet's clonal selection theory.
In 1968 Ada was appointed head of the Microbiology Department at the John Curtin School of Medical Research at the Australian National University, taking over from Frank Fenner.
He held the position for 20 years; during his period of leadership the school became an international centre for the analysis of T cell- mediated immunity.
He was also active in the World Health Organization from 1971, his involvement lasting over 20 years.
While retaining his Australian base, he spent substantial time in the US from 1988, becoming Associate Director and then Director of Johns Hopkins School of Hygiene and Public Health in Baltimore.
His latter years in science were spent as a visiting Professor at the John Curtin School, where he was involved in the development of a candidate HIV vaccine.
During that time he also wrote a very readable and informative popular science book on immunization," Vaccination: The Facts, the Fears, the Future" published in 2001.
He died on 25 September 2012.
Nikita Melnikov
Nikita Vasilevich Melnikov( born 27 June 1987 in Shakhty, Russia) is an Ethnic Russian Greco- Roman wrestler.
He won both gold medals in the 2013 Summer Universiade in Kazan, Russia- his country and 2013 World Wrestling Championships in Budapest, Hungary.
In 2016 European Wrestling Championships he beat third consecutive to Artur Aleksanyan of Armenia and became European Champion in 98 kilos.
Filip Arsenijević
Filip Arsenijević( born 2 September 1983) is a Serbian footballer who plays for TSC Bačka Topola.
He is older brother of Nemanja Arsenijević.
Jovan Markovski
Jovan Markovski( born March 28, 1988) is a Macedonian professional basketball small forward who last played for Vardar.
He is older brother of Gorjan Markovski who is also basketball player and plays for Feni Industries

Question: Who is older, Gordon Ada or Nikita Melnikov?
Answer: Gordon Ada