. "irn44490" . . . . . "Mark Klempner donated his collection of oral history interviews and transcripts to the United States Holocaust Memorial Museum on April 22, 2007. The interview with Catherine Klumper was used as primary source material for Klempner's book\"The Heart Has Reasons: Holocaust rescuers and their stories of courage\" published in 2007."@en . "Transcript of oral history interview with Catherine Klumper"@en . "Restrictions on use. Restrictions may exist. Contact the Museum for further information: reference@ushmm.org\n\nCopyright Holder: Mark Klempner"@en . . . . . "No restrictions on access"@en .