Mariel never knew her grandmother Ilona, a Holocaust survivor, or about Ilona's parents, siblings, and extended family. But she's in a place in her life where questions about her family and their history have begun to take on new importance. In this episode we find some answers. Credits

The Genealogy Detective is written, researched, produced, edited, mixed, and hosted by Mary Duffy. Music by Blue Dot Sessions. Special thanks to Doree Shafrir, the United States Holocaust Memorial Museum, JewishGen.org, Ekkies and Squish. Interviews of Rose Ringel (1996) and Albert Rosenthal (2000) are from the archive of the USC Shoah Foundation. For more information visit http://sfi.usc.edu.