De Boer's first club was De Zouaven in Lutjebroek where he played before being selected for the Ajax youth programme in 1983.
Ronald Reagan | Second Boer War | Boer | Ronald McDonald | Ronald Fisher | Ronald Colman | Ronald McDonald House Charities | Ronald D. Moore | Ronald Hutton | Ronald Grigor Suny | Ronald Reagan Presidential Library | Ronald J. Clarke | Ronald | Ronald van Prooijen | Ronald Reagan Washington National Airport | Ronald Knox | Ronald Harwood | Ronald Graham | Ronald Corp | Ronald Wright | Ronald Ross | Ronald Nall-Cain, 2nd Baron Brocket | Presidency of Ronald Reagan | Ronald Searle | Ronald Numbers | Ronald Lauder | Ronald Coase | Ronald Binge | Ronald Singson | Ronald Shiner |
Doesburg's funeral was on June 22, 1989 and the complete Ajax squad of these days were present, including Menzo, Meijer, Jan Wouters, Aron Winter, Danny Blind, Bryan Roy, Dennis Bergkamp, Frank de Boer and Ronald de Boer who carried the coffin.