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I found: Helmrich Heinrich Bernhard Bollenhagen *1849 in Marschhausen +1912 in San Francisco. Marschhausen is in Lower Saxon (Hannover), Germany. He had two daughters, Etta, born 1886 and Elisabeth born 1887 and a son Hermann born 1889 in San Francisco. Etta was married in Shanghai and Elizabeth married Bob Best, born in San Francisco.