Stewart (USS Enterprise)

Stewart was a Human woman. She was an ensign in Starfleet who served aboard the Federation starship USS Enterprise (NCC-1701) in the 2260s under the command of Captain James T. Kirk.

History
In 2267, Ensign Stewart was on the bridge during an engagement with the. At this time, the ship's main computer had been reprogrammed with a female personality by technicians on Cygnet XIV and had come to obsess over Captain Kirk. In an attempt regain control of the ship, Kirk addressed it with an unexpectedly alluring voice that made Stewart blush, along with Nyota Uhura and Yeoman Kouc. 

In 2269, Stewart was head of the ship's astronomical mapping section. After the ship's exploration of the nebula, Stewart was exposed to spiroid epsilon radiation from the planet Terratin, which shrank everyone aboard the ship down to about an inch tall. Stewart was eventually returned to normal height by Lieutenant Lefebre through the use of the transporter.