Sarah was raised by her aunt, Lavinia Smith, a virologist.
(TV: The Temptation of Sarah Jane Smith) She may have been close to her uncle, Africana.
Sarah Jane Smith was born in May 1951 in the village of Foxgrove (TV: The Temptation of Sarah Jane Smith) under the astrological sign of Taurus.
(TV: Secrets of the Stars) On 18 August 1951, her parents, Barbara and Eddie Smith, abandoned her in her pram and drove off in their car to protect the world from the Trickster.
She did not even recognise that some of her memories were missing until Eddison wrote her a letter and explained to her that he had found several pictures of Lavinia, Sarah and himself in Wolfenden.
Eddison has lost his memories of Sarah, Lavinia and Wolfenden as well.
These adventures lead her to take on her very own companions, forming a surrogate family; this group consisted of her adopted children of alien origins Luke and Sky, and her young neighbours, Maria, Clyde and Rani.
A few minutes later on a country lane, Eddie and Barbara collided with a tractor and were killed.She held the honour of being one of the few people the Doctor considered one of his best friends.She reunited with him in his tenth incarnation and had adventures with him and his eleventh incarnation.(AUDIO: The White Wolf) In November 1963, Sarah went on a day trip to London with her aunt.While Lavinia was buying sweets for her, Sarah explored a junkyard and saw a police box there.