Henry Moore (cricketer)
Henry Walter Moore( 1849 – 20 August 1916) was an English- born first- class cricketer who spent most of his life in New Zealand.
Tom Riley (actor)
Tom Riley( born 5 April 1981) is a British actor, producer and director.
Gina Riley
Gina Riley( born 6 May 1961) is an Australian actress, writer, singer and comedian.
Aidan Coleman (poet)
Aidan Coleman( born 1976) is an Australian poet and speechwriter.
Arthur Riley
Arthur Riley( born 26 December 1903 – July 1984) was a South African international footballer who also played football for Liverpool.
Ron Riley (basketball, born 1973)
Ron Riley( born December 23, 1973) is an American former professional basketball player.
Gordon Arthur Riley
Gordon Arthur Riley( 11 June 1911 – 7 October 1985) was an American biological oceanographer most associated with his studies of the dynamics of plankton ecosystems.
Aidan Coleman
Aidan Coleman( born 17 August 1988) is an Irish horse racing jockey.
Born in Innishannon, Cork, Ireland, Coleman rode in the 2008 Grand National at the age of 19, his first time riding in that steeplechase.
He was one of the youngest riders ever to start the Grand National.
In April 2009, Aidan won the Conditional Championship making him the leading Conditional jockey in the UK for the 2008 season.
Coleman in 2009 signed a two- year deal with Racing UK, a British horse racing television channel, to wear their logo while racing.
As part of the deal, Coleman was also to appear on the channel.
Coleman's brother is Irish National Hunt jockey, Kevin Coleman( born 5 August 1985) who won the prestigious Galway Plate in 2007
Glyn Riley
Glyn Riley( born 24 July 1958) is an English former professional footballer who played as a striker.
Gwendoline Riley
Gwendoline Riley( born 1979) is an English writer.

Question: Was Aidan Coleman or Gordon Arthur Riley born first?
Answer: Gordon Arthur Riley