- See Walsh for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
As of 2369, Walsh held the rank of captain, and commanded the USS Trosper, an SCE ship. That year, Walsh and the Trosper responded to a distress call from Drema IV, the site of a dilithium mine collapse. During this mission, Walsh initiated his friendship with fellow captain David Gold. (SCE eBook: Progress)
During the Dominion War, Captain Don Walsh commanded the USS Sloane. In 2374, the Sloane, along with the USS Appalachia, was ordered to defend the USS da Vinci from Cardassian and Jem'Hadar forces as it repaired a communication relay in the Phicus system. (SCE eBook: War Stories, Book 2)