Lauren (Lily)
From Tardis Wiki, the free Doctor Who reference
According to one account, in her later life Sarah Jane Smith had a child whom she named Lauren. Lauren later married Will and had a child named Lily. (PROSE: Lily)
Trivia
Not much is known about Lauren's father, or exact family details. However, if one were to consider Lily as canon to The Sarah Jane Adventures, she would be Luke and Sky's adoptive sister.
