Thanks for writing!My research involves the Horn/Horne family basically, and the reason I was trying to make contact with his children's descendants was to see if they had anything on the Horn's.However, here is what I have on Houston Horn's children by Frances McKown (who died in Itawamba County, MS 5 Jun 1884 and is probably buried in Hopewell Methodist Cemetery there):
George L. Horn (born 1874l died 1851).George lived in Branch, Arkansas while the rest of the family went on to Hill Co, TX.He married a woman named Carrie (1869-1929), and they're both buried in Hampton Cemetery in Branch, AR (Franklin County).
Edna Arvie Lou (1877-1951).Edna married William Edgar Carter and died in either Hill County or Lubbock Co, TX.They also lived in French, NM at the time of her step-mother's death (1937).After Edna's death, her husband must have moved back to TX where he died in Lubbock.
Vera Idellia (8 May 1879-22 Apr 1963).Vera never married and is buried between her father and step-mother at Ridge Park Cemetery in Hillsboro, TX.
James Nicholas Horn (6 Mar 1881-).At the time of his step-mother's death, the write-up said he lived in Penelope, Hill Co, TX.
Henry Clayton Horn (9 Jun 1883-).I think he moved to Texas with his father, but think he was already dead by the time his father died in 1828.