Janet Majors

'''Ens. Majors' was a Yeoman onboard the USS Star League'' (NCC-2101) in the late 23rd century. 

Early life before Starfleet
Janet was born on August 14, 2249 human calendar time on Earth in San Francisco, California.

Chronology

 * 2250: Janet is born on Earth in San Francisco, California.
 * 2266: Janet enters Starfleet Academy
 * 2270: Janet graduates Starfleet Academy and promoted to Ensign, her first assignment is the USS Star League as a Yeoman.