Who was born first, Tom Nijssen or Mark Knowles?
Tom Nijssen Tom Nijssen (born 1 October 1964 in Maastricht) is a former professional tennis player from the Netherlands.
Olaf Østensen Olaf Magnus Østensen (born 1950) is a Norwegian civil servant. He works in the Norwegian Mapping and Cadastre Authority, where he is Deputy Director for NGIS.