Nikolaus Ehlen was a German pacifist teacher. He was a Catholic pioneer of the Selbsthilfe-Siedlungsbau, which was a movement to help workers get their own home. Wikipedia
Born: December 9, 1886, Graach an der Mosel, Germany
Died: October 18, 1965 (age 78 years), Velbert, Germany
Parents: Johann Peter Ehlen