Brian,
According story on
https://ilibrariana.wordpress.com/20...gsslachtoffer/ the DC-3 also had M. Veenendaal (mechanic) and KNILM-pilot H.W. Nieuwdorp on board.
DC-3 made a crash landing due to fuel starvation 30 km S. of Palembang.
Blaak may have been killed by hostile Sumatrans, badly injured Pronk killed by Japanese, but text offers other opinions about the circumstances of their deaths.
Of Veenendaal there was no trace. Nieuwdorp went for help into the jungle, only never to be seen anymore.
Regards,
Leendert
Regards,
Leendert