Bjo Trimble was a Starfleet officer in the 24th century. She was a commander in 2364. Before stardate 41547.3, according to an order sent by Admiral Kathryn Trimble of Starfleet Operational Support Services, she was to be transferred from the USS Equicon. (TNG: "Conspiracy", okudagram)
This character was only mentioned in writing.
She was named after Star Trek fan and organizer Bjo Trimble.