Kristen Scott

The name given to the younger sister of Montgomery Scott in "Bum Radish: Five Spins on a Turquoise Reindeer" by TG Theodore in the Strange New Worlds VI anthology.

Like Scotty, she is dark haired. As children, she is the only person who refers to Scotty AS "Scotty" (a nickname he doesn't really like as a nine-year-old, but will grow to use his entire adult life).

Kristen is presumably the mother of Peter Preston, though other works may contradict this.