- see entry in family tree
- Cassirers after Hitler - the Scattered Generations
- The life of Claude Cassirer Video interview with Beverly Cassirer with family photos.
- Cassirer v Kingdom of Spain Video of argument by Spain against return of Pissaro painting, argued En Blanc on Wednesday 24 March 2010 in Courtroom One of the James R Browning United States Courthouse.
- National Geographic Video on Claude Cassirer's fight to retrieve the Pissaro Painting
- Lilly und Klaus Cassirer Die Geschichte von Lilly und Klaus Cassirer und ihrem bis heute andauernden Kampf um die Rückgabe des Bildes "Rue Saint-Honoré am Nachmittag bei Regen" von Camille Pissarro. Süddeutsche Zeitung Magazin 5 Feb 2009.
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For more on individuals and families, and their genealogy, see Family Tree Index.