There is a Cora Frances Huffer b. 28 Jun 1907 in Winchester, Franklin Co TN, died 2 Dec 1986 in Athens, McMinn Co TN. Her parents were Jacob S. Huffer (1866-1938) and Frances Elizabeth Margaret Payne (1871-1955). Cora's last name at death was Harris; on her gravestone (from Find A Grave) her name is given as Cora Yarbrough Harris. She is found in the 1930 and 1940 census records as Cora Yarbrough; she married William E or Earl Yarbrough about 1926; they had children (Yarbrough): daughters Davis or Dorris (abt 1927), Edna P (abt 1928) and Earling (abt 1931) and son Donald (abt 1938). I'm not sure where Harris comes in. And I don't find any Earl Hamilton (just a coincidence that it is the same first name as Earl Yarbough?), or a daughter named Margaret. So I'm not 100% sure that this is the same Cora Huffer, though the dates and TN location seem to fit.