Sergeant Jean Maddox was in charge of communications at the Home-Army Fifth Operational Corps.
In September 1969, Maddox intercepted signals from the ships attacked by the Ymir in the North Sea and helped the corps pinpoint the location of the Grandfathers' ship. (PROSE: The Grandfather Infestation)
On 26 December 1969, Maddox attended the Fifth Operational Corps Boxing Day party with her husband and her daughter. (PROSE: Home for Christmas)
In 1970, Lethbridge-Stewart rang her to see if she had heard from Sally Wright. She informed Lethbridge-Stewart that Wright hadn't reported in. (PROSE: The Daughters of Earth)