Advertisements for Van Houten could be found on trams throughout Europe and the United States .
Coenraad 's son Casparus Johannes ( 1844 -- 1901 ) , employed since 1865 , had a gift for marketing and contributed greatly to the growth of the company .
Advertisements for Coenraad   could be found on trams throughout Europe and the United States .
Coenraad 's son Casparus Johannes ( 1844 -- 1901 ) , employed since 1865 , had a gift for marketing and contributed greatly to the growth of the company .