In the Pre- Crisis continuity, Luthor is shown as having very few personal attachments. Shamed by his crimes, his parents Jules and Arlene disown him, move away, cut off all ties to Smallville, and change their name to the anagram "Thorul". Jules and Arlene take their younger child Lena with them, who is only a toddler at the time and later does not remember her real last name. Lena Thorul is told her older brother died in a mountain climbing accident. Not long after their departure from Smallville, Jules and Arlene die in a car accident, leaving Lena to grow up alone. Like her brother, she attends Regis High School and then later becomes a librarian. Lena meets Lois Lane, who plans to mention the young woman in a story but is then warned not to by Lex Luthor. Superman and Lois discover the truth but agree to Lex's request that Lena not learn about their connection. Later on, Lena moves to Midvale and befriends Superman's cousin Supergirl, who also winds up helping to make sure Lena doesn't learn the truth about her brother.