Dawson Walking Bear

Dawson Walking Bear was a Federation Starfleet officer, of Comanche descent, on active duty in at least the 23rd century.

He was born in the late 2240s and was a helmsman on USS Enterprise towards the end of James T. Kirk's first five-year mission as her commanding officer. 

Walking Bear was a scholar of Earth history, particularly those of the indigenous peoples of North America and South America. During a mission in 2270, he recognized an entity purporting to be Kukulcan, an ancient snake deity of the Mayan people.

After Enterprise's refit in the early 2270s, Walking Bear also served at the helm, though also taught at Starfleet Academy around this time. (Orion Press: Klingons!). From 2276 to 2283, he transferred to USS Reliant as helmsman under Captain Clark Terrell.

Walking Bear was executive officer and a lieutenant commander of USS Shenandoah for about a decade, then was posted to command of the Al-Rashid in 2294. (Orion Press: Liberation From Hell, The Dianasian Gift, "Return to Xantharus", Chekov's Enterprise)