There are probably no record of what might have been planted there.
For the most part, plantings were done on individual family plots, under the understanding that families would maintain their own plots.
Sadly, as families died and moved away, these maintenance efforts fell apart.
The roses that would have survived in a cemetery in your area are probably the same roses that have survived in older residential neighborhoods in the same area.
Out here in CA, the most common survivors are Tea Roses, Chinas, and Noisettes, along with some Poly-Teas.
I am under the impression that this is also true in Texas.

Jeri

I lived in the Anniston area until I moved about 3 years ago, and I spent a lot of time in the cemeteries there searching for roses. My garden was filled with roses grown from cuttings from those roses. Unfortunately, I was never able to identify many of them. I did grow two plants of Perle d'Or, taken as cuttings from Oakwood Cemetery in Montgomery, very near Hank Williams grave. The original was fighting for space with a large shrub which had grown up around it, and it was still blooming heavily. I hated to leave those two plants behind when I moved, but they were far to big to move. I replaced them as soon as I could after I moved to Mississippi, I liked them that much. Among once-bloomers, Dorothy Perkins and American Pillar have naturalized all over that area and can be seen blooming away every spring, both in cemeteries and along roadsides. R. bracteata also occurs occasionally in that area. There's a large specimen in the city cemetery in Jacksonville, again fighting with a shrub for space. I had a plant grown from seed from that plant in my previous garden, and I have two young potted plants grown from suckers from that same rose on my patio here. I suspect it's very near the limits of it's hardiness range there. Depending on where in AL you are, you might be too far north for R. bracteata.

Mark