C. A. Zandbergen was a Dutch plantation official of the Société Financière des Caoutchoucs who, on 22 May 1950, was seriously wounded alongside his colleague B. de Jong by an Atjehse amokmaker (Atjehse amokmaker) at T. Pura on the East Coast of Sumatra.
Source
Oostkust van Sumatra-Instituut Mededeling No. 37: Deli-Figuren uit de jaren 1950 t/m 1952, compiled by Ir. F. J. J. Dootjes (Amsterdam, 1953).