Charles Gesner van der Voort had started his career in Rotterdam, at Holland-China Trading Company (HCHC). In 1938, he went to Shanghai for the firm. The Japanese interned him, and most other Dutch nationals, from 1943-45. In camp, he met his wife Nancy and they married after the war. After a leave in The Netherlands, they returned to the Orient, where Charles continued to work for HCHC in Hong Kong.
Twenty years before Charles started, in 1918, a photo album was made of the Hong Kong office and office staff. The Guangzhou office was also photographed.
This photo shows Gerard Hendrik van den Poll. Gwulo.com has a Hong Kong juror's list of 1918 which includes his name, he is listed as Assistant at Holland-China Trading Co. https://gwulo.com/jurors-list-1918
Looking at his hands, you can recognise a pipe and tobacco pouch.
1256 N.V. Internationale Crediet- en Handelsvereniging Rotterdam/C.V. en N.V. Wm H. Muller & Co. (Internatio-Muller N.V.) 1402 Foto album van kantoren in China.
courtesy Stadsarchief Rotterdam, <a href="https://old.gwulo.com/%3Ca%20href%3D"http://www.stadsarchief.rotterdam.nl/en">http://www.stadsarchief.rotterdam.nl/en" rel="noreferrer nofollow">www.stadsarchief.rotterdam.nl/en</a>