Alexander Kirk was my ggggrandfather born 13 Jan,1814 in Washington Co., TN. He married Sarah Jane Smith from VA.They had 9 children.The oldest was George Washington Kirk b. 26 July, 1837 in Greeneville, Greene Co.,TN. He is my gggrandfather.I too am having a hard time nailing down his father.One lead I have is that his father is George Kirk b.about 1774 to 1780 in VA.He was married to a Mary from VA.Their children were: John Anderson Kirk b. 24 May 1806 d.abt 1880 m. 1 Feb,1827, Margaret Kelsay; Alexander b.13 Jan,1814 d.30 Jan 1878 in Limestone, TN m. 28 Sept. 1836 in Greeneville, Greene Co. TN to Sarah Jane Smith b.30 Sept 1816 in VA: Jackson Kirk b. abt 1825 in TN d. ??? Washington Co. TN m. 1 Feb, 1844 in Washington Co, TN to Jane Martin b.???; Mary Jane Kirk b. ????(have no info on this child.How does this fit in with what you are working with?Looking forward to hearing from you.