Josef Wolfert from Wanne-Eickel
What a coincidence.
My Grandfather's Name was Josef Wolfert too.
I'll try to provide some info and can get more from my relatives if they are of interest.
He was born in 1910 and he lived in Wanne-Eickel (now going by the name of "Herne") from at least the time after WWII until his death in 1992.
We still live in the surrounding area.
He was married to Agnes who's maiden name was probably "Dartmann".
I'll try to find out more.