Zelda Bradbury

Zelda was the Chief Scientist at Starbase 134 in the late 23rd century. 

Early life before Starfleet
Zelda was born on October 29, 2228 human calendar time on the planet Earth in Manhattan, New York.

Chronology

 * 2228: Zelda is born on Earth in Manhattan, New York.
 * 2246: Zelda enters Starfleet Academy
 * 2250: Zelda graduates Starfleet Academy and is promoted to Ensign, her first assignment is the USS Spaker as a scientist.
 * 2255: Zelda is promoted to Lieutenant junior grade and assigned to the USS Kongo as a scientist.
 * 2260: Zelda is promoted to full Lieutenant and is made the Assistant Chief Scientist on the USS Krieger.
 * 2265: Zelda is promoted to Lieutenant Commander and is assigned to the USS Vega as the Chief Scientist.
 * 2270: Zelda is promoted to Commander and becomes Chief Scientist at Starbase 134.