Reginald MacRoberts-MacAllister

Lt. MacAllister was the Science officer onboard the USS Intrepid (NCC-1738) in the late 23rd century. 

Early life before the Intrepid
Reg was born on May 29, 2232 human calendar time on the planet Mars.

Chronology

 * 2232: Reg is born on the planet Mars.
 * 2256: Reg enters Starfleet Academy
 * 2260: Reg graduates Starfleet Academy and promoted to Ensign, his first assignment is Deep Space Station K-9 as a Scientist.
 * 2263: Reg is promoted to Lieutenant junior grade and is transferred to the USS Ibn Daud as a Scientist.
 * 2266: Reg is promoted to full Lieutenant and is assigned to the USS Federation as a Scientist.
 * 2270: Reg is assigned to the USS Intrepid as a Scientist.