I am looking into the Etherton/Atherton family lines for friend. I have part of your line if your grandmother was named Fannie Gertrude. I have such a person born married to Arnie B. Atherton in Sikeston, Mo on 5/18/1908. Did your grandfather die in 1962 in California? Was his birthday 1/2/1890? If so, then I have his parents and your grandmother's parents' names. She must have died a long time before him. Let me know if things match.