I don't know how it was in the Western Europe, but Communist Poland
ignored Holocaust. The official version was "everyone suffered",
without saying that Jews suffered particularly. Especially events
where Poles would be found guilty (Jedwabne pogrom, Kielce pogrom)
were ignored and taken up only well up after 1989. On the other hand,
shortly after the was a great amount of material on Holocaust was
gathered by Jewish Committees operating in Poland. On the yet another
hand, the fact that they were separate entities staffed by Jews mainly
indicates that history of the Holocaust was of interest to Jews mainly
and Poles largely ignored it, for various reasons.
As far as I know, West Germany had a revival of interest in Holocaust
in the Sixties, when the 1968 generation started asking questions.
There was a revival of the trials of Nazi criminals, also.
Roman