Artur Văitoianu
Artur or Arthur Văitoianu( 14 April 1864 in Izmail – 17 June 1956) was a Romanian general who served as a Prime Minister of Romania for about two months in 1919( 27 September – 30 November).
During his mandate, the first elections of Greater Romania were held.
Arthur Cunha
Arthur Cunha da Rocha( born, 10 January 1990 in Rio de Janeiro), known as Arthur Rocha or Arthur Cunha, is a Brazilian footballer who currently plays for Indonesian club Arema in the Liga 1 as a centre back.
Arthur Sherburne Hardy
Arthur Sherburne Hardy or Arthur S. Hardy( August 13, 1847 – March 14, 1930) was an American engineer, educator, editor, diplomat, novelist, and poet.
Arthur Henrique Ricciardi Oyama
Arthur Henrique Ricciardi Oyama( born 14 January 1987 in São Paulo), also known simply as Arthur or Arthur Henrique, is a Brazilian footballer who plays as a left back for Gżira United FC.
Arthur Agatston
Arthur Agatston( born January 22, 1947) is an American cardiologist and celebrity doctor best known as the developer of the South Beach Diet, but also the author of many published scholarly papers in the field of noninvasive cardiac diagnostics.
His scientific research led to the Agatston Score for measuring coronary artery calcium.
Matthew Arther
Matthew Arther( or Arthur)( 18351890) was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battles of Fort Henry and Fort Donelson.
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
Claire Alexander
Claire Arthur Alexander or Arthur Claire Alexander( born June 16, 1945) is a Canadian former professional ice hockey player who played in the National Hockey League( NHL) and World Hockey Association( WHA) in the 1970s.
Fritz Mercur
Fritz Mercur( June 23, 1903 – September 1961) was an American tennis player.
He was an insurance salesman.
In a twenty- year career, Mercur was an inconsistent performer, but at his best had a victory over Bill Tilden( at a tournament at Rye in 1928) to his name.
Mercur made his debut at the U. S. Championships in 1921 and lost in round one to that year's finalist Wallace F. Johnson.
Mercur lost early at the U. S. championships in 1923, 1924, 1926, 1927 and 1928.
In 1929 Mercur beat Wilmer Allison before losing to Frank Hunter in the semi finals.
In beating Allison( the champion in 1935), Mercur came to the net and beat Allison at his own game.
Mercur lost early in 1930, 1932, 1935, 1936 and 1937.
Arthur LeSueur
Arthur LeSueur or Arthur Le Sueur( December 7, 1867 – March 19, 1950), was an American socialist newspaper editor, politician, and lawyer.
LeSeuer served as the mayor of Minot, North Dakota as a Socialist, a post to which he was elected in 1909 until his resignation in 1911.

Question: Who is older, Fritz Mercur or Arthur Agatston?
Answer: Fritz Mercur