I saw this message just yesterday and was suprised that it was posted by a cousin of mine, Hartmut, who, unfortunately, died in april last year. I wish to add that Hartmut's and my grandfather Georg Friedrich Nienstedt was a saddlemaker in Worpswede, Germany, and was born in Zeven. Ernst Friedrich Nienstedt married in Zeven a Sophie Maria Dorothea Nienstedt born Schmidt. When he emigrated to America in about 1890, he was followed by his son Karl Nienstedt who seems to have married in America an Irish woman.
I am looking for the whereabouts of my great grandfather and his son Karl in America.