Jocelyn Treadway

Jocelyn Darnell was born on March 11, 2227 in Georgia, North America on planet Earth, not long after the birth of Leonard McCoy and not long before that of Clay Treadway. After Treadway's birth, the Darnells and Treadways loosely betrothed their offspring to each other.

By 2243, the two had become boyfriend and girlfriend, but Darnell quickly learnt that Treadway was overpossessive and prone to extreme jealousy. When the two attended a high school social in 2244, Darnell openly grabbed the shy Leonard McCoy to dance with, angering Treadway. Treadway fought with McCoy, but was knocked to the floor by him, allowing the gentlemanly McCoy to leave with Darnell. This ended their relationship and was the beginning of that of Darnell and McCoy.

McCoy enrolled in Medical School in 2245, although he did his studying in his home in Georgia. McCoy and Darnell finally married in 2248 and had a daughter, Joanna McCoy around 2249. Treadway left Darnell's life (and presumably Georgia) shortly after her marriage.

The years between 2245 and 2253, when McCoy was studying voraciously, caused Darnell much loneliness, but it was in 2253 that Treadway reappeared in her life (in Georgia). Soon, the two were in love and committed infidelity, which McCoy discovered. This drove McCoy into depression(TOS novel Shadows on the Sun).

Soon after, McCoy saw an advert for practicing medicine in space. Believing this was his best way to flee his current situation, McCoy signed up and left(TOS novel Planet of Judgment).

A meeting of unspecified detail saw Darnell meet James T. Kirk in 2263, and the two would not see each other again until 2293.

Darnell sent McCoy their divorce papers in 2266 and he signed them without a fight.

By 2281, Clay Treadway was an Ambassador and he joined the Diplomatic Corps.. He finally married Darnell in 2283, and she, too, joined the Diplomatic Corps..

In 2293, soon after establishing tentative peace with the Klingon Empire(TOS film Star Trek VI: The Undiscovered Country), 'USS Enterprise-A'' NCC-1701-A was sent to planet Alpha Gederix IV(a.k.a. Ssan), along with the Diplomatic Corps. team of Clay and Jocelyn Treadway. Assassins of Shil Andrachis there captured Jocelyn and Kirk. Although a rescue team was launched, Andrachis ultimately murdered Jocelyn, and Andrachis himself died in the event, too(TOS novel Shadows on the Sun).

Though not confirmed, it is probable that Jocelyn was also the mother of Barbara McCoy.