My 3rd great grandmother was named Demaris Lou Thomas. She married Crowder L Hall who was white from my understanding. Do you have any info on her or know where I could start my research? They had a girl named Ida Mae Hall who was 1/2 Indian (my 2nd great grandmother). I was told Ida grew up on an Indian reservation in Madisonville Tx, which I believe to be the Alabama-Coushatta Indian Reservation. I have photos of Demaris and Lou on tin.