My gggreat grandfather is William Parker 1807,Ga. married Louisa Lewis. His brother Jacob B. Parker married Matilda Lewis. Mary Lewis married Addison Parker. I want to know the relationship of William and Jacob to Addison.I have searched over 20 years for their parents.William lives next door to Addison 1850 Jasper Co., Miss. census. 1860 william and Jacob live in Texas.