Mentioned in notes taken at the Borinski reunion in Israel organised by Annelise (Ora) Borinski in 1982. Not mentioned in Kaethe Danziger (geb. Halberstaedter)’s "Borinski" notes or as a sibling of Rose in her entry in online-ofb.de. Not mentioned in the 1939 census of German Jews or in ancestry.com.

Possibly a conflation with Rudolf Weisskopf.