Besides his wife , his students included Tilly van der Zwaard , Loes Boling and Els van Noorduyn .
Blankers continued working as a coach with the national team and Sagitta through World War II and 1940 -- 50s .
Besides coach 's wife , coach 's students included Tilly van der Zwaard , Loes Boling and Els van Noorduyn .
Blankers continued working as a coach with the national team and Sagitta through World War II and 1940 -- 50s .