Yes, the anecdote that you heard is basically confirmed in the
article, "The Dark Side of Numbers: The Role of Population Data
Systems in Human Rights Abuses." Social Research, Summer, 2001, by
William Seltzer, Margo Anderson.
According to the article, the Dutch established a population
registration system for "administrative and statistical purposes," and
then the data from that registration system was used by the Nazis to
apprehend Dutch Jews and Gypsies for deportation to the death camps.
Here is an excerpt from the article:
'In the Netherlands, the effort at establishing a comprehensive
population registration system for administrative and statistical
purposes was completed even before the Nazi-occupation (Methorst,
1936; Thomas, 1937). In 1938 H. W. Methorst, who was then the
director-general of the Dutch Central Bureau of Statistics and
formerly also head of the Dutch office of population registration,
reported on the rapid progress being made in the Netherlands in
implementing a new comprehensive system of population registration
that would follow each person "from cradle to grave" and open "wide
perspectives for simplification of municipal administration and at the
same time social research" (1938: 713-714)...
... These registration systems and the related identity cards played
an important role in the apprehension of Dutch Jews and Gypsies prior
to their eventual deportation to the death camps. Dutch Jews had the
highest death rate (73 percent) of Jews residing in any occupied
western European country--far higher than the death rate among the
Jewish population of Belgium (40 percent) and France (25 percent), for
"The Dark Side of Numbers: The Role of Population Data Systems in
Human Rights Abuses." Social Research, Summer, 2001, by William
Seltzer, Margo Anderson, hosted by findarticles.com:
dutch census nazis religion
dutch "population registration" religion
I hope this helps.