Threats
She saw her father for the last time in 1943. Gerda and her sister also had to go into hiding, because Van der Veen could be put under pressure with threats that his daughters would be harmed.

Never be yourself
Gerda van der Veen tells of her experiences: ‘I didn't know anything about his work with the resistance. When we had to go into hiding, we didn't know why. In retrospect the worst thing about it was that you could never be yourself. I once accidentally revealed our last name to a woman who was admiring my doll. That same night we were bundled off to another address.'. 

Gerrit van der Veen was executed in 1944.