Complex sentence: Gillespie is named for Robert Addison Gillespie, who came to Texas in 1837, was an original Texas Ranger, an Indian fighter, a merchant and a soldier in the Mexican-American War.
Split into simpler sentences: Gillespie is named for Robert Addison Gillespie, who came to Texas in 1837. He was a Texas Ranger, an Indian fighter, a merchant and a soldier in the Mexican-American War.