@futurist The issue with this is that the matches in those school census records don't name a "Park", but rather other children's names. And in 1894, the only 11-year old Herd recorded is a female.

I'm intrigued. What's the name of the 9-year-old in the 1892 census?

As for the F (female) sex in the 1894 Mississippi school census for Herd, that might simply be a typo. Really, what one should do is to see if the siblings' names match, as well as the father's name. I personally have not seen either the 1892 or 1894 entry, so I can only comment on them based on what others have told me about them.