I have a John C Brown b.abt 1832 in Knox County TN. John married Martha A Gilpin on 28 Sept 1858 in same county. The last mention of John C Brown in Tennessee (that I can find) is 1860, when he refused to administer his father's estate. He and Martha seem to have disappeared. Martha Gilpin was sister to Armstead Gilpin, who married a Martha J Coffman. They seem to have disappeared also. Does anyone recognize these people? Does anyone have information where they may have gone? Please help!!