I know your post is a couple years old but I was wondering if you have had any further luck tracing the Summers family before they lived in Weakley County, Tenn. I am from Priscilla Summers Oliver's line. She married William Oliver in Saline County, Ill in 1854 and they moved to Magee Springs, Ky. The story passed down in my family is that Priscilla was Cherokee. This same story was passed down to people in Letty Summers Prices' family. My Grandmother has a photo of Priscilla and she certainly looks Native American. This could be the problem we are all having tracking this family back further.