During World War I , he served in the Patriotic Emergency Services and the military .
The son of innkeeper Adolf Heckmann , Willi Heckmann grew up in the public house environs of Altena ( Westphalia ) .
During World War I , son served in the Patriotic Emergency Services and the military .
The son of innkeeper Adolf Heckmann , Willi Heckmann grew up in the public house environs of Altena ( Westphalia ) .