This Google Search will lead you to lots of information, but most of it is in German. This page (click) is the best I found. It says that Schnuckenack is the great-nephew of Django. Schnuckenack is now in his 80's and lives near Heidelberg. He has three wives and "more than enough" children. The Schnuckenack Reinhardt Quintet sold almost a million records in the 1970's. Nowadays, two of his sons perform in the Schnuckenack-Reinhardt-Sextet.
-Joe Offer-