The Roy & Lois Duke Family Home Page"

I am working on our family genealogy using Family Tree Maker. I have good information on my mother's side of the family (Dockrey, Ragsdale) and on my wife's family (Enoch, Hagerbaumer).
I am seeking information on my father's family who resided during the 1930s in Seminole, Oklahoma. My grandfather's name was Joseph R. Duke. My grandmother's name was Molly Hammock. Their children were named Roy, Arthur, Haskell, Refford, Derrell, and Olga.

Any information and possible contacts would be appreciated. I will also gladly share any information that I have.