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From BionicWiki

Spoiler warning: Plot and/or ending details follow. THIS COULD INCLUDE UNCONFIRMED MATERIAL FROM UNAIRED EPISODES OR PREVIEWS

Madeline Jo Sommers
First mentioned	Bionic 360
In-story stats
Known enhancement	None
Gender
Date of death	2004
Home	Van Horne, IA
Occupation	Political activist
Significant other	Ethan Sommers
Children	Becca Sommers, Jaime Sommers
Season One spoilers

Madeline Jo Sommers was Becca and Jaime Sommers's mother.

About

NBC's Bionic Woman website gives some information about Madeline's life. As a political activist like her husband, Madeline Jo Sommers spent much travelling away from home. She shared some of her husband's notoriety, but spending days or weeks away at a time became an issue when she had her first daughter, Jaime Sommers, in 1983.

Being an activist meant that they did not have a large income, so Jaime went to public school where they lived in Van Horne, Iowa. In 1991, Madeline had her second daughter, Becca Sommers, adding to the cost of daily life. So when elder daughter Jaime became old enough, she helped out by getting neighborhood jobs in addition to doing her schoolwork.

When Madeline was diagnosed with stage II breast cancer in 2000, her daughter Jaime quit most of her school activities to help take care of her. And after graduating high school in 2001, she postponed college to continue doing so. Finally, in 2004, Madeline passed away due to the cancer.