Jacob Hanouwer was an official with the Dutch railways. In 1938 he joined the Caissa chess club.
S. Laansma, De Joodse gemeente van Zutphen (Zutphen 1977) 44
This person is commemorated on a memorial in Zutphen. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
Biography