Peterson was a Starfleet crewman who served aboard the USS Defiant in the early 2370s.
In 2372, Peterson was serving on the bridge of the Defiant when it entered the atmosphere of a gas giant. Peterson was killed, along with fellow bridge officer Boyce, when two Jem'Hadar fighters attacked the Defiant. (DS9: "Starship Down")
This crewman may have been a member of the Peterson family who resided on DS9.