Plough/Thomason KS.to OK.

Looking for my gg grandparents. My grandmothers name was Pearl Bartholomew. Her parents were Melvin and Riena Thomason. Rienas maiden name was Plough. I've reason to believe she died in Glencoe OK.Payne co.
I don't have any thing further back than that. I do know that Melvin and Riena lived near Savonburg and Uniontown KS.(near Fort Scott KS.)If anyone has any information please let me know. Thanks Vickie Carter.