Lydia Littlejohn was President of United Earth during the late 2150s and early 2160s. (ST novel: Starfleet: Year One) A statue in her honor stood in the observation center of Epsilon Ceti Outpost. (SCE eBook: The Future Begins)

In 2155, Littlejohn attended a meeting in the Prime Minister's office, at which the Prime Minister announced his plan to cease production of the NX-class in favor of the Daedalus-class. (ENT novel: Beneath the Raptor's Wing)