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Memory Alpha

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")

Peterson was one of these three bridge officers.
This crewman may have been a member of the Peterson family who resided on DS9.