I am looking for information about an August Sy who married Catharina Tiedemann 22 November 1860 in Manitowoc County, Wisconsin. Catharina Tiedemann, my gr-gr-grand-aunt, was born about 1835 in Schleswig-Holstein and emigrated with her parents, Christian and Anna Tiedemann, in 1853 to New Holstein, Calumet County, Wisconsin. I would like to know if they had a family, etc. All I know of August is that he was from Prussia and that he filed a Declaration of Intent in Calumet County on 1 April 1859.
Any leads appreciated.