The info you have is correct to my knowlegde. Herb Ator of Mineral Wells is my Great Uncle. I live in Lipan and I know for certian that there are more Ators burried at Evergreen, I don't know about the other cemetarys around here.
I have never seen the Ater name except in family history info. I don't know why the name was changed, if anyone does i'd like to know... I am the daughter of Richard Earl Ator, son of Roy Earl Ator, son of Sular Dexter Ator, son of Henry Ator, son of Matthias Dout Ator son of Casper Ater/Eder/Eader.. I've seen it all three ways.
If anyone has any info about those lines of the Ator/Aters, please email me.