I think we are talking about the same man (family); The earliest name I find is that of Edward Goldsby and wife Jane; One of their children was John Turrentine Goolsby:b= 1727 Albemarle Co., Vir. d=11-2-1805; His son William Goolsby (Sr.) b=1748 Albermarle Co., Vir. d= 11-5-1820 Jasper Co., Ga.; His son was Isaac Goolsby b=1771 Virginia, d= 1850 Jefferson Co., Ala.; His son was John Mearle Goolsby b=11-2-1822 d=1886 Tippah Co., Miss.; His son was John Mearle Goolsby (Jr.) b=? d=?; His son was John Earl Goolsby b=1894 d=1948 Miss.; His son was (my father) James Earl Goolsby b=1917 Rossville, Tenn.; d=1975 Columbus, Miss.; I am James Earl Goolsby (Jr.) B=1943 Gulfport,Miss.
Of course there were many other children not listed of these men...I think the man married to Mary Jefferson was one of these children.