The Russian spies come to mind.
... She was born in Chicago on January 12, 1942. Her father, then Bernard Ohrnstein, was Jewish and changed the family name to Dohrn when Bernardine was in high school...
Why did they change their name? Why Dohrn? WHo else do we know that changed names? Did she ever use her original family name after dad changed it? Are there any links with others using that name?