Sandra O'Reilly

Sandy was the Assistant Chief Tactical officer onboard the USS Sol (NCC-1733) in the late 23rd century. 

Early life before Starfleet
Sandy was born on October 21, 2237 human calendar time on the planet Earth in Dublin, Ireland.

Chronology

 * 2237: Sandy is born on the planet Earth in Dublin, Ireland.
 * 2256: Sandy enters Starfleet Academy
 * 2260: Sandy graduates Starfleet Academy and promoted to Ensign, the first assignment is the USS Shaitain as a Tactical Officer.
 * 2265: Sandy is promoted to Lieutenant junior grade and is assigned to the USS Tyr as a Tactical Officer.
 * 2269: Sandy is promoted to full Lieutenant and to the USS Sol the Assistant Chief Tactical Officer.