Looking for the Family of Jack Alexander of Georgia and Tennesee

My name is jerry justice I have an uncle (deceased) from rome ga. he had several brothers and sisters in that area.willilam, henry,pearlie, ruth, george, charles and a couple more?

My gg grandfather was Posey Jackson Alexander. He was born in Ga. in 1850's but did live in the Dalton Ga area at some point---which is near Tennessee. (?)