He declared the statue of Mary in the church as Königin des Bundes (Queen of the union).
[1] From 1934, Catholic youth organisations were gradually restricted by the Nazi regime to strictly religious actions.
Haus Altenberg was occupied by police and Gestapo twelve time, and closed in 1942.
He founded in 1946 the association Verlag Haus Altenberg, which has published material related to pedagogy since.
Cardinal Joseph Frings appointed Wolker Rektor of Haus Altenberg in 1948, also the leader of a new organisation, Bischöflichen Hauptstelle für Jugendseelsorge.