|The following is based on Fallout 3 cut content and has not been confirmed by canon sources.|
Sydney's father is a character that only exists in the game-files of Fallout 3.
He was killed during a weapons trade off at the Statesman Hotel. After that, his daughter had to wander D.C. alone, but was able to handle herself because he had taught her how to handle and maintain guns, and to upgrade them since she was young.
|Apparel||Weapon||Other items||On death|
Sydney's father does not appear in Fallout 3, and can only be found in the game-files.