John BakkerDirector of Traditional MusicHe is the Director of Traditional Music and responsible for the music in the Traditional Service at 11:15 a.m. – the choirs and the concert series. Gijsbert KokOrganistHe plays twice a month in the traditional service at 11.15 am, besides the annual Christmas and Palm Sunday concerts with the APCH choir and at several other occasions. Helen KnaapenOffice ManagerResponsible for the administration/office at APCH. Margie RockafellowTreasurerHer task is to monitor and register all tithing collection and financial transactions for APCH. She has worked with the finance committee at APCH since 1998, first as a volunteer later in the more official capacity of Treasurer.