From my experience as a native Texan, the name “Nigger-Head” was the most common.
It seems reasonable to me that the hunting lease was named after the flowers found on it, which is a common way to refer to fields or other areas within a large parcel of land.
We used to call “Brazil Nuts” “’n—’ toes.” That’s simply what they were called in my family. Shocking, huh? But that’s the way the world was, even in good Christian families and communities, once upon a time.
I went to high school in Greenville, Texas, where there was a sign across mainstreet and on the (get that, “the”) water tower that said, “The blackest land and the whitest people.” http://www.amazon.com/Blackest-Land-Whitest-People-Greenville/dp/1425944256 This is a town that integrated its schools in 1970,just before my family moved there. I don’t think they took the sign down until the early ‘70’s and didn’t paint the tower until later.
You don’t celebrate this sort of history, but you can’t condemn someone for renting a hunting lease with a rock on it, no matter how ugly the name.