https://www.findagrave.com/memorial/62920609/wilhelm-hammer#

Born in Mingolsheim, Baden, Germany.

On 7 Mar 1819 he was married to Margaretha nee Ganther in Mingolsheim. She died on 9 Feb 1837 and is buried in Mingolsheim.

"Deutschland, Baden, Erzbistum Freiburg, katholische Kirchenbücher, 1678-1930," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:WX54-5G2M : 17 September 2019), Wilhelm Hammer, 7 Mar 1819; citing Marriage, Mingolsheim, Bruchsal, Baden, Deutschland, , Erzbischöfliches Archiv Freiburg (Archbishop's Archives), Germany.

"Deutschland, Baden, Erzbistum Freiburg, katholische Kirchenbücher, 1678-1930," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QBQH-CHMM : 16 January 2019), Wilhelm Hammer and Brigitte Laier, 17 Aug 1837; citing Marriage, Rauenberg, Rauenberg, Wiesloch, Baden, Germany, , Erzbischöfliches Archiv Freiburg (Archbishop's Archives), Germany.

"Deutschland Heiraten, 1558-1929", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:J4TR-F8Z : 22 February 2020), Wilhelm Hammer, 1837.

He immigrated to America on 23 May 1839 aboard the ship "Iowa" with his second wife Brigetta and their daughter Rosalie, and children from his first marriage Carl, Philipp, and Magdalena locating in Jefferson, Ohio.

Sometime between 1840-1842 he relocated to Highland, Madison Co. IL.

The 1850 census, taken on 13 Sept 1850 lists the following William Hammer, 56 Germany, Farmer Charles, 26 Germany Phillip, 20 Germany Magdalina, 19 Germany Rosalia, 11 Germany William, Jr., 9 Illinois Joseph 4, Illinois