Jonothon Evan Starsmore was a Human Starfleet engineer in the 24th century.
In 2373 he held the rank of Lieutenant Commander and led a 39 member S.C.E. team attached to the Sixth Fleet.
He aided in the design of the tricobalt warhead used by the USS Lionheart during the raid on the Torros II Shipyards. ("Declaration")
He led the engineering team that worked on upgrading the captured Seltek Nor for the Bajoran Space Guard. ("Narkonna")