In the obituary of my gr-gr-grandfather Joachim Stoltenberg (1820-1904), who died in Clinton, Iowa, it is stated that Joachim is survived by his sister, "Mrs. Hamann of Davenport." This Mrs. Hamann's maiden name would have been Stoltenberg. Does anyone have any info on this Mrs. Hamann or the connection between Hamann and Stoltenberg in Davenport, Iowa?