I have a George Acker, born June 19, 1827 in Memmelshoffen, Bas-Rhin, Alsace, France, Died September 16, 1910 in Ashton, Dane County, Wisconsin. George was married to my great grandfather Paul Faber's sister Josephina Faber. Paul was married to a Magdalena Acker a cousin to George.
George's parents were Jean Franz Acker, Sr. and Anne Marie Acker, a cousin.
You mention Ashton, WI, Most of the Ackers who settled there came from Memmelshoffen, Bas-Rhin, Alsace, France. Some settled in the Franklin, WI area as well.
Their orgin is Alsanion. You can find the coat of arms by doing google search for Acker coat of arms.
Patrick Turner