Which Texan was Least likely to be a unionist?

Sam Houston, the former governor of Texas and a prominent military leader, was least likely to be a unionist. Despite his opposition to secession and support for the Union during the Civil War, he faced significant backlash from pro-secessionist factions in Texas. Ultimately, his stance led to his removal from office, highlighting the tension between his beliefs and the prevailing sentiments of many Texans at the time.