Mary Calista Hendley was the sister of Hiram L Hendley. They were the children of George S. H. Hendley and Elvira E. Foster Hendley (later Warren). In the 1850 Census of Maury Co., Tenn, Dist. 9, Hiram L Hendley (12 yrs.) and Mary C Hendley (6 yrs.) are living with their stepfather Thomas Warren and their mother Elvira Warren. According to Maury Co., Tenn. Court Minutes, Hiram and Mary's legal guardian was a John McDougal in Wayne Co., Tenn. Thomas Warren and Elvira E. Hendley were married April 9, 1850 in Maury Co., Tenn.. Elvira E Foster married George S. H. Hendley on Jan. 18, 1838 in Maury Co., Tenn.