1850 Barbour Co., AL Census. 1860 Barbour Co., AL Census. 1880 Barbour Co., AL Census. 1860 Henry Co., AL Census. 1870 Henry Co., AL Census. 1900 Geneva County, AL Census. Cannon, Deidre's Research. Copeland, Graham, Many Years After Delk, William “Billy” research Griffin, Dallas W. - wife, Ann's ancestor is John Hartzog. Hartzog, James Washington’sFamily Bible. Hartzog, Ada and Virginia Hartzog Chatwin, Our Family Heritage - The Hartzogs,(self published in 2001). Hartzog, Evans' research in 1970s.. Kurt Frei, Familien in Sandhausen1694-1899,(1990). "Langly, Julia Manuscript of 1951." Leona Hartzog Still, The Hartzog Line,(1967). Moody, Steve and JoAnn's research. Murry, Frances - notes. Rev. Giessendanner's church records. Salley, A. S. Jr., The History of Orangeburg County South Carolina,(Regional Publishing Company, 1969). Scott, Linda's Family. Thomas Hartzog of Memphis notes written in 1960's. Werner Hacker, Kurpfalzische Auswanderer vom Unteren Neckar,(1983).