- Due to vague dialog and script references, some dates have not been ascertained to happen in any one year. The following points have been narrowed down to this decade.
- Stardate 1087.7
- Presumably, Mitchell was younger than James Kirk (born 2233), since Kirk was an instructor of Mitchell's. The two men did not seem to be different enough in age to suggest Mitchell might have been born in the 2240s.
- Stardate 1089.5
- Presumably, Dehner's stardate of birth being only a few digits from Mitchell's indicates the same time period.