Mary McElroy

Mary was the Adjutant to Commodore Henry Gunn at Starbase 134 in the late 23rd century. 

Early life before Starfleet
Mary was born on June 10, 2228 human calendar time on the planet Earth in Aberdeen, Scotland.

Chronology

 * 2228: Mary is born on Earth in Aberdeen, Scotland.
 * 2246: Mary enters Starfleet Academy
 * 2250: Mary graduates Starfleet Academy and is promoted to Ensign, her first assignment is the USS Tonti as a support officer.
 * 2255: Mary is promoted to Lieutenant junior grade and assigned to the USS Enteprise as a support officer.
 * 2260: Mary is promoted to full Lieutenant and is made the Assistant Chief Support Officer on the USS Hornet.
 * 2265: Mary is promoted to Lieutenant Commander and is assigned to the USS Achernar as the Chief Support Officer.
 * 2270: Mary is promoted to Commander and becomes Commodore Gunn's Adjutant at Starbase 134.