If you're basing your sex determination on what types of flocks are present in TX in the fall, I would hesistate to do that. It would be very easy this time of year for a bird to get separated from the flock they were running with, and just hook up with other turkeys for safety. Especially this time of year.

Here in NY we basically have 4 main types of flocks in the fall. Hens with poults, Hens without poults, mature gobblers, and second year jakes that have been run off from their mothers but have yet to join a bachelor group. With that being said, when there's snow on the ground and food is scarce, you'll see a mixed flock in the fields that have food. They may not roost together, like in the spring, but they feed together.

I would believe your bird to be a gobbler from reasons listed here already, spurs, head color, and that fan is just not drab enough to be a hens. That looks like a nice full Eastern bird's fan.