Lieutenant T'Lehr was a Female Vulcan Starfleet officer in the 2260s.

In 2267, T'Lehr was serving aboard the USS Defiant as helmsman when it encountered the cloaked IKS Kretoq. She was ordered by Captain Blair to pursue the expected course of the unknown vessel, a chase which turned out to be fruitless. (ST novella: The First Peer)

In 2268, T'Lehr was still serving aboard the Defiant as helmsman, when she was lost in interphase. (TOS episode: "The Tholian Web", VAN novel: What Judgments Come)

Defiant personnel
Federation
Starfleet
USS Defiant (NCC-1764) T. BarrowsT. BlairS. GarrovickJ. HamiltonK. MbuguaC. NynR. SabapathySerlingT. ShullStevokE. SutherlandT'LehrM. Willoughby UFP emblem image. Starfleet emblem. Assignment patch image.
USS Defiant (NX-74205) (I) AbdabaT. AmarV. AaastaakArla R.J. BashirH. BlakeBremertonS. CarsonE. DaxJ. DaxM. EddingtonH. IlarioJoson W.KellyKira N.KizilbashKolettaMeyerE. MuñizN'Kduk-ThagNogM. O'BrienOdoReeseP. ReeseK. RichterB. SiskoF. StevensR. TannenbaumT'RulC. L. M. D. C. TelTutuT. WeymouthJ. WheelerWorf
USS Defiant (NCC-75633) (II) Aleco V.J. BashirBoehmS. BowersJ. CandlewoodCassiniCelesteJ. ChaoE. DaxG. ForteD. GervasiGordimerQ. HeinsK. HunterT. JastE. JuarezKira N.J. KurlandLankfordM. LeishmanA. McCallumK. MerimarkMinecciM'NokC. MooreL. NeeleyNogM. O'BrienOdoB. PermenterT. RahimK. RichterG. RonessJ. SenkowskiB. SiskoN. SthiliStovP. TenmeiT. ch'ThaneThronT'rbVanBuskirkE. VaughnWorfA. Zucca
mirror universe ISS Defiant (Constitution-class)
Terran Empire
Imperial Starfleet
J. ArcherKelbyT. MayweatherPhloxM. ReedA.G. RobinsonH. SatoT'PolC. Tucker Terran Empire emblem.
Defiant
Terran Rebellion
Galactic Commonwealth
J. BashirS. BowersE. DaxJ. DaxA. DeCurtisLeetaE. MuñizM. O'BrienPennakB. SiskoStevensP. TenmeiT. ch'Thane Terran emblem.
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