There is a claim on Texas Monthly that the Western cultural aspect of Texas (Cowboys, Mavericks, Rangers) was not the essence of Texas and it’s culture, before 1936, Texas was very similar to other Deep Southern states, and Western culture was an attempt to redefine Texas, far from the Confederacy?

by Big-Bonkin-Head
sunagainstgold

I recently answered a question that might interest you, on the very positive presence of Texas in, yes, Stoker's original Dracula. If not about Texas culture per se, it certainly involves the reputation of Texas in the U.S. and abroad--not just as Wild Western, but as the face, the embodiment, of the frontier.