Geller, Jeff: - Jeff Geller, MD is part of a family that includes both the Jewish and Christian religious backgrounds. Storytelling became a favorite way to answer his children's endless questions: Why does Dad always work on Christmas? Why do we have to go to school on Chanukah but not Christmas? and Can we get presents for BOTH Christmas and Chanukah? 'Hershel' and other stories have helped his family embrace the most meaningful parts of the many traditions in his community.