Dear Mary Ann,
My name is Brenda Solsbee Cole. I am the daughter of William Lee Solsbee, son of Polly Ann and William Isaac. From what little research I have done, Solsbee seems to be an English name or variation of Soulsbery (many different spellings.) I too have heard the story of the Indian boy being William Isaac's father; however, I also have heard the rumor that his mother's surname was Solsbee and may or may not have been married to the Indian.
I and my daughter Cathryn and her 3 children were in South Carolina for Aunt Mary's memorial when they buried her ashes. Were you there also?
I live in Allons, TN about 100 miles from Nashville. Where do you live?
You may email me direct at email@example.com
Talk to you later, cuz.