An engineer and former astronaut candidate who becomes stranded in Portage Creek, Indiana, in December 2000, later revealed as the ancestor whose legend inspired Kathryn Janeway to join Starfleet.
Shannon O'Donnel appears in the Voyager episode 11:59, played by Kate Mulgrew. Janeway grew up believing she was an astronaut and the driving force behind the Millennium Gate, a huge self-contained habitat that became a model for the first Mars colonies.
The flashbacks tell a humbler story. Out of work and living in her car, O'Donnel breaks down in Portage Creek, where bookseller Henry Janeway is the last holdout refusing to sell to the Gate's developers. She is offered an engineering job on the project if she can change his mind.
She grows fond of Henry and his son Jason, and persuades him to give way moments before the deadline at midnight on New Year's Eve. They later marry. Janeway is at first dismayed by the truth, then reconciled to it by her crew.