List of United States representatives who served a single term
There are United States representatives who spent only a single two-year term (or less) in office usually either due to death, resignation, or electoral defeat. In some rare cases, freshmen members have decided to run for another office or not run for reelection, and two members (John William Reid and George Santos) have been expelled.
Source: Wikipedia — List of United States representatives who served a single term (CC BY-SA 4.0)