Jan Esselman has been a baseball executive. He was an official with Haarlem Nicols in the 1980s. He was on the board of the Dutch Baseball Federation from 1989-1995 and Chairman of the Technical Committee of the Confederation of European Baseball from 2005-2013. In 2013, he was voted President of the CEB, the second Dutch president in CEB history; he held the role until 2017.
Source: Marco Stoovelaar