John McMahon (Surrey and Somerset cricketer)
John William Joseph McMahon( 28 December 1917 – 8 May 2001) was an Australian- born first- class cricketer who played for Surrey and Somerset in England from 1947 to 1957.
Wale Adebanwi
Wale Adebanwi( born 1969) is a Nigerian- born first Black Rhodes Professor at St Antony's College, Oxford.
Guido van Rossum
Guido van Rossum( born 31 January 1956) is a Dutch programmer best known as the author of the Python programming language, for which he was the" Benevolent dictator for life"( BDFL) until he stepped down from the position in July 2018.
He is currently a member of the Python Steering Council, however he has withdrawn from nominations for the 2020 Python Steering Council.
Erik van Rossem
Erik van Rossem( born 12 October 1938) is a Dutch field hockey player.
He competed in the men's tournament at the 1964 Summer Olympics.
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.
Conor O'Mahony
Conor O'Mahony( born 18 October 1984) is an Irish hurler who played as a centre- back for the Tipperary senior team from 2005 up to 2015.
O'Mahony made his first appearance for the team during the 2005 National League and immediately became a regular member of the starting fifteen.
During that time he has won one All- Ireland winners' medals, five Munster winners' medals, one National Hurling League winners' medal, two Fitzgibbon Cup medals, one Railway cup medal, two Munster Under- 21 Hurling Championship medals, two Munster Minor Hurling Championship medals and two All- Star awards.
He has ended up as an All- Ireland runner- up on two occasions.
At club level O' Mahony plays with the Newport club.
Erik van der Meer
Erik van der Meer( born 7 July 1967 in Utrecht) is a Dutch professional football coach and a former player.
Conor Mahony
Conor Mahony is an Irish former rugby union player.
Hartley Lobban
Hartley W Lobban (9 May 1926 – 15 October 2004) was a Jamaican-born first-class cricketer who played 17 matches for Worcestershire in the early 1950s.
Erik van Rossum
Erik van Rossum( born 27 March 1963, in Nijmegen) is a former Dutch football player.
He runs a pub in Nijmegen.

Question: Was Conor O'Mahony or Erik Van Rossum born first?