I search for my grand-grand-grand father Adolph Carl Friedrich Maerker (or Maercker or Merker or Mercker), born 04 May 1837 in Mecklenbourg state in Germany (village: Granzin) who was married on 10. June 1862 to Henriette Zarnow at home. He went to America and disappeared. His family (e.g. my grand grand father) was told he died in Milwaukee. Our family got ancestors lists from the maerker tree up to the 1700's with an autobiographie of Georg Mercker.