I posted on the "coffee" thread where I read it at first. I think she is at least part Berkshire.... white stripe, white feet, upright ears. She may be young. It is hard to tell, but she may have been running wild for a bit as you said. From the pictures, again hard to tell for sure, but I don't think she is nursing the pigs, but rather is bred and getting closer to having a litter. If she has been running with a feral group, she could very well have gotten bred .
The pigs could just be traveling with her as they learn young to forage and tend to get weaned off pretty young as the wild hogs don't milk as long or as well as domestic because they are having to forage all the time. I would pen them up, if no one claims them, feed out the 3 younger ones for awhile and put them in the freezer. If she is getting close to farrowing, then she might have felt the need to find a "safer place" to have them and remembered that she used to get fed at another farm.
If any of the 3 smaller ones are males, I would get them castrated as the feral hogs tend to be more aggressive. and cutting the males will help to tone down the hormone levels.
2-3 ft at the shoulder is not that short or small of a hog if she is young.
You have alot of feral hogs in Tx right? So not that surprising that she would just turn up. Sometimes when they are hynted, I have been told that they will break off into smaller groups and travel..... like I said, maybe she got loose, hooked up with some ferals, then found her way into your direction and some of the smaller pigs just followed her.
