John Barnes

'''Ens. Barnes' was a Scientist onboard the USS Intrepid'' (NCC-1738) in the late 23rd century. 

Early life before the Intrepid
John was born on January 2, 2250 human calendar time on the planet Earth in Shermer, Illinois.

Chronology

 * 2250: John is born on planet Earth in Shermer, Illinois.
 * 2266: John enters Starfleet Academy
 * 2270: John graduates Starfleet Academy and promoted to Ensign, the first assignment is the Intrepid as a Scientist.