John Jordan

John was an Engineer onboard the USS Xerxes (NCC-505) in the late 23rd century. 

Early life before Starfleet
John was born on August 13, 2252 human calendar time on Earth in Covina, California.

Chronology

 * 2252: John is born on Earth in Covina, California.
 * 2268: John enters Starfleet Academy
 * 2272: John graduates Starfleet Academy and promoted to Ensign, the first assignment is the USS Xerxes as an engineer.