I am researching the family of Ernst Martin Christoph Gall b. 19 May 1852 in Germany. He married Josephine Graef b. 1855. Their son, Johann Michael Gall was born at Port Washington.Another son, Martin Heinrich was born in Michigan (?).My grandmother, Hulda Gall, was born at Athens, Marathon Co. WI. I cannot find the Graef family with Josephine on any census.I also cannot find the Ernst Gall/Josephine Graef family on any census. Any help would be appreciated.