Would like to trace ancestors of John Quandt; Sophia Luth Quandt, daughter of Joakin Luth; and Louise Prein Quandt, daughter of Jacob and Louise Prein. John Quandt, born Mecklenburg, Schwerin, Germany 12 Jan. 1841, was the son of Fred "Fritz" Quandt and Sophia Luth. John married Louise Prein 22 Aug. 1862 in Germany. Louise, born 27 June 1844 in Mecklenburg, Steinhagen, Germany, was the daughter of Jacob Prein and Louise (maiden name unknown). John Quandt's mother Sophia was the daughter of Joakin Luth. John, his wife Louise, their first two children, and John's mother Sophia sailed from Hamburg on the ship Sir John Lawrence and arrived in America in New York Harbor on 28 Jan. 1867. John and family settled in North Freedom, Wisconsin. John died in Poynette, WI 25 Oct. 1927; Louise his wife died 3 Mar. 1906 in Reedsburg, WI; and John's mother Sophia died 19 Aug 1901 in North Freedom, WI. Any help on tracing the German roots of these individuals will be greatly appreciated.