Hi, You can contact the following organizations: California State Library, library.ca.gov/calhist/genealogy.html. They will send you their list of researchers who will search for obits. This might be the best source since the ones you are looking for are so old. There are three other sources at http://freepages.genealogy.rootsweb.ancestry.com/~obitl/volca.htmlhttp://freepages.genealogy.rootsweb.ancestry.com/~obitl/volca.html. Successful Searching!