Beginnings -- Jan Klassen and Jantien Harms -- Lucas Jans ter Borg and Jantien Geerts -- Jannes ter Borg and Henderika Christiaans Bakker -- Jan ter Borg -- Karel Hendrik ter Borg and Elisabeth de Roon -- Johannes (Jan) ter Borg and Catharina Dieleman -- Bibliography -- Selected index of family names.