Looking for information on the family and ancestors of Henry Petermann. He was born in Hanover Germany in July 1834. Immigrated to America and found his way to California. He lived on the eastern shore of San Francisco bay, in Eden. He and his wife Mary (marie?) Weserman ran a general store with a post office in it, located in Mt. Eden, which today is part of Hayward California. They are both buried in the Mt. Eden Cemetery. I understood they were salt farmers and owed the Mt Eden Salt works, which became part of the Oliver and Leslie salt works. I'm looking for Henry's german ancestors and any information. Henry is my great great grandfather. He died in 1891.