Rebecca operated in husband's Korby's clothing store, in Metuchen, New Jersey. She appeared with her husband
Hyman Kotkin among the spectators in two Copperfield TV specials:
The Magic of David Copperfield VI: Floating Over the Grand Canyon (1984), and
Copperfield: Tornado of Fire (2001). Moreover her son David talks about her during
The Magic of David Copperfield V (1983) TV special.