Jack named Arvin Sloane as Sydney's temporary guardian and Sydney went to live with Sloane and his wife Emily, for a time (Note that this is a retcon as it was previously established that Sydney did not meet Arvin or Emily until Sydney had already started working for SD-6. Sydney herself had stated that she had large memory gaps from around the time of her mother's death and can only remember that her father began drinking heavily and became more of an absentee father, leaving Sydney to be raised by nannies. Later it is revealed that the memory gaps are due to Jack, who after finally having been cleared, tested Project Christmas on Sydney, so that she would never be recruited by the KGB, and like all the candidates tested, the training ended with Sydney's memory erased.)