Ensign Stone was a Starfleet officer whose first assignment out of Starfleet Academy was aboard the USS Tombaugh, under Captain Blackwood.
Stone noted in his personal log that his first week of active duty was a nightmare, even after four years at the Academy, as the captain seemed to enjoy persecuting new recruits. He had been told by the first officer that he shouldn't take it personally, but was having difficulty doing so due to the circumstances involved.
Stone, along with the rest of the crew of the Tombaugh, were assimilated by the Borg in 2362, a fact that was unknown at the time by Starfleet Command.
In 2375, when the USS Voyager encountered a Borg neural interlink frequency, Seven of Nine began to experience the personalities of various assimilated individuals, including Stone. (VOY: "Infinite Regress")
