Grandpa’s family

I’m trying to find my grandpa’s family & in turn mine. I have been told my great grandmother was full blooded Cherokee. The only thing I know about her is her fathers name was Charlie Boggs & her name was Rosie Ann Boggs. Married Lee Jackson as best as I know. From Arnold/Myrna Nebraska area. My family came from Lebanon MS & Maybe Decatur Ohio. My parents & all my grandparents are now gone. I have had 2 complete strangers over the yrs say to me -you’re Cherokee aren’t you. I’m not real sure but would love to find out who my family is & where I come from. I was told Rosie was a faith healer & I am a naturopath & found it all came so easy to me & I kinda think it may be due to being a part of my lineage. If anyone can help me I would greatly appreciate it. Thank you Crystal Jackson Mayfied