Lemeeh Keears was a joined Trill serving in Starfleet during the 24th century.
She held doctorates in Quantum Physics, Astrophysics, and Hyperspace Physics.
In 2375 she was promoted to Lieutenant Commander.
In November of 2377, she transferred to the USS Oglala as Chief Science Officer. ("Oglala")
While awaiting commissioning of the cruiser she aided Apurba Matri in using a runabout to position sensor buoys in the Gamma Quadrant, increasing Heimdall Station's long-range sensor range by six light years.