Zenas Randall Bliss was an officer and general in the United States Army and a recipient of the Medal of Honor. He formed the first unit of Seminole-Negro Indian Scouts, and his detailed memoirs chronicled life on the Texas frontier. He was the father of Rhode Island Lieutenant Governor Zenas Work Bliss.

Fort Duncan was a United States Army base, set up to protect the first U.S. settlement on the Rio Grande near the current town of Eagle Pass, Texas.