American fan (born 1933) who helped organise the letter-writing campaign that won the Original Series a third season and compiled the Star Trek Concordance, an early episode reference book.
Bjo Trimble and her husband John organised the Save Star Trek campaign of 1967 and 1968, encouraging viewers to write to NBC when the series was expected to be cancelled after its second season. The network renewed the show for a third year.
She compiled the Star Trek Concordance, an index of the people, places and things in every episode, first as a fan publication and then in a 1976 edition from Ballantine Books that also covered The Animated Series.
She was involved in the later campaign to have the first space shuttle named Enterprise, appeared as an extra among the assembled crew in Star Trek: The Motion Picture, and wrote the memoir On the Good Ship Enterprise.