myrtle shelton-native american married african american

i am seeking information about my great great native american grandmother. her first name was myrtle (or spelled martel?)...i dont know what her maiden last name is, but she married Albert Shelton. she was born about 1887 in arkansas and was living in Shreveport Ward 4, Caddo, Louisiana in 1910. her parents were born in kentucky.

I've attached a photo of her as well as a photo of my family tree. How do I find out more about my native roots?


Thank you for your time and help

Telena
503.960.8024


ps. based on more research i did, she would have been from one of these counties: faulkner, madison, union, carroll, benton, sevier, yell, washington, scott, sebastian, pulaski, crawford or polk.

Her possible maiden names could have been: smock, rollinson, robinson, duncan, allred, goodwin, johnson, massie, mcride , mcgurr (macguire), roberts, stuckey, alexander, bell, clark, cockran, crofford, fish, hatfield, hunter, morgan, nofire, parter/ *porter* , lyons, perani, pool, pritchet, silvio, blanton, callins, cole, collins, dale, deyman, dole, indian, jackson, jones, laford, selvage, totten, webster or welch


her parents could have been from these counties in Kentucky: JOHNSON, campbell, owsuey, livingston, perry, jefferson, fayette or hickman


also, arkansas consisted of 6 tribes: osage, quapaw, caddo, cherokee, tunica and chickasaw

Kentucky consisted of these 4 tribes: shawnee, chickasaw, yuchi and cherokee.


this leads me to believe that Myrtle and her parents were possibly from the cherokee or chickasaw tribe. Though family stories have always said we have "blackfoot" indian ancestry. Blackfoot are from montana and canada while myrtle was from arkansas and her parents from kentucky....so that doesnt not make sense.