I have just begun my search.We have a family mystery:Supposedly, Henry William SKIFF came from Mass. with a wife, ?, and a child, Ethyl Mabel, to San Francisco in approx. 1900.While in SF they had two more children, Marie I. and Helene Gilbertia (my paternal grandmother).They were in SF during the 1906 Earthquake.Sometime later they moved up to Tuolomne City (heart of the gold country).Marie & Helenealways spoke of Ethyl as their 1/2 sister (there was no contact with Ethyl that we know of).On Helene's marr. cert. to Leo CASENAVE, she lists Henry William SKIFF as her father but writes "XXX" as her mother.My father insisted that Henry William SKIFF and wife were buried in the Tuolomne City cemetery.Last weekend we went and there was no sign of them.Marie and Helene have both passed on and were extremely secretive about their mother and sister.