That's great, I also descend from Savannah Gragg! She married my Great-Great-Great grandfather, Adolph Gusdavis Kreger (sometimes Krager/Crager, etc).

My line is as follows:

William H. Gragg = Lettie Ann Pinion
Savannha Gragg = Adolph Gusdavis Kreger
Minnie L. Kreger = Michael Earl Wilson
Living Wilson = Raymond Fred Vincent

I have a lot of information on the Kregers and Pinions if anyone wants to share info. I'm just stuck on W. H. Gragg