Ensign Tess Allenby was a Starfleet officer and flight controller assigned to the USS Enterprise-D.
Allenby manned the conn when Captain Jean-Luc Picard and Ensign Wesley Crusher left the ship aboard the mining shuttle Nenebek and the Enterprise-D assisted the Gamelan V natives in pulling a waste barge off their orbit and into the sun. (TNG: "Final Mission")
Allenby was also at the conn when the ship encountered the two-dimensional lifeforms and was pulled into a cosmic string fragment. (TNG: "The Loss")
She briefly manned the conn in 2369 during Doctor Jo'Bril's test flight with the shuttlecraft Justman and its integrated metaphasic shielding. (TNG: "Suspicions")
Allenby was played by Mary Kohnert.
Her first name was given in the scripts for "Final Mission"  and "The Loss". 
Her appearance in "Suspicions" was stock footage from "Final Mission".
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