Alexander Willem Frederik

  • Idenburg 1861-1935, son of Petrus Johannes and Rosine Alexandrine Frédérique van der Hegge Spies, married to Maria Elisabeth Duetz in 1882
  • Rutgers 1918, son of Abraham Arnold Lodewijk and Rosine Alexandrine Frédérique Idenburg
  • der Hegge Spies (van), married to Wilhelmina Barbara Heyligerdina Verroten