Jacobus Henricus Kann was married to Adriana Anna Polak Daniels. He ran a well-established bank in The Hague.
Jacobus Henricus Kann was enthralled with Herzl's ideas. In 1897 Kann attended the first Zionist congress in Basle. He figured prominently in the world Zionist organization, serving on the international executive board and with the Jewish Colonial Trust established in 1898 as the bank of …