This page contains information regarding Star Trek: Discovery, and thus may contain spoilers.
Ahearn attended Musk Junior High School as part of the class of 2247. She and Sylvia Tilly were friends, and the two often had lunch together, Ahearn referring to Tilly by the nickname "Stilly". She signed Tilly's yearbook, expressing unhappiness at her friend moving again after six months and calling her "the nicest person [she'd] ever met at this awful school". (DIS: "New Eden")
Tilly and Ahearn never spoke again after this. (DIS: "Point of Light") Ahearn died on June 9, 2252 . Her friend Tilly learned of her death after encountering what she believed to be a ghost of Ahearn but was really a jahSepp who used her memory in order to communicate with Tilly. (DIS: "New Eden", "An Obol for Charon")