Barbara Smith

Barbara Smith was a Starfleet officer who served aboard the USS Enterprise (NCC-1701) in the 2260s.

She served as a yeoman in 2265 when the Enterprise first passed through the galactic barrier. Captain Kirk had difficulty remembering her name, referring to her as Jones. During the resulting turbulence, she briefly held Gary Mitchell's hand. 

Towards the end of the five-year mission, she was promoted to lieutenant j.g. and became friends with Elizabeth McKenna. (Star Trek Continues: Come Not Between the Dragons)

Smith developed ESP powers during the final mission of the Enterprise when the Enterprise again visited the galactic barrier, triggered by the remnants of her contact with Mitchell. She used these to sabotage the Esper-hijacked USS Congo. (Star Trek Continues: To Boldly Go, Part I, To Boldly Go, Part II)