I'm pretty sure Newman's aunt won Fort Worth, San Antonio, and Houston all in the same year back in the late 70s or early 80s.
There have been several kids win all three shows, but I don't remember if any did two in one year. I know Stetson Copus won all three, I think one of the Moylan girls did, and there are probably some others I'm forgetting about.
When both of Newman's calves walked in the ring, it was pretty clear in each case what was about to happen. I'm splitting hairs here, but Newman's Houston calf walked kind of choppy on the front end. The judge even commented on it -advising him to quit holding the calf back and let him walk. I didn't see him outside of his initial class to see if that corrected itself.
As hard as I looked, I couldn't find a fault in his Fort Worth calf.