Hartman served in the British military. (AUDIO: Through the Ruins) His daughter Yvonne disliked him, commenting "you can't choose your family." (AUDIO: New Girl) Security files on the Fendahl reached the Torchwood Institute through Yvonne, who obtained them from her father. This was a deliberate plan by the Fendahl to have the files cross Gwen Cooper's path. (AUDIO: Night of the Fendahl)

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