Some of the earliest documentation of a Hanneman-Treutel relative in America — dated 1855 — has been discovered in the archives of the Walworth County, Wisconsin Circuit Court. John Frederick Krosch, just a year from stepping off the boat from Saxony, filed his declaration of intent to become a United States citizen on November 5, 1855 before the county court in Elkhorn, Wisconsin.
Krosch made the declaration on behalf of himself and his wife, Christiana. The declaration document says Krosch intended to become a U.S. citizen and that he “renounced forever all allegiance and fidelity to any foreign prince, potentate, state or sovereignty whatsoever, and particularly to William Frederick, King of Prussia.” The document was found in the court archives, held at the Area Research Center at the University of Wisconsin-Whitewater.
Johann Friedrich Krosch was born in 1799 in the Kingdom of Saxony, which today is part of Germany. In 1854, he brought his wife Christiana and children Charles, Augustus, Reinhold, Henrietta (grandmother of Ruby V. Treutel Hanneman) and Gustave to America.

The Krosch family landed at New York on July 21, 1854 and headed for Milwaukee. The eldest boys established farms at Lake Beulah near East Troy in Walworth County. John Frederick Krosch may have initially lived in Walworth County to help his boys get their farms started, considering that he filed his citizenship declaration in Walworth County.
By 1860, the elder Krosch had his own farm near Mukwonago in nearby Waukesha County. The 1860 U.S. Census lists the youngest Krosch boys, Reinhold and Gustave, as laborers on their father’s 80-acre farm. Plat records from 1873 show the Krosch farm in Section 23 of the Town of Mukwonago, just a few miles from where his daughter Henrietta Treutel lived with her husband, Philipp Treutel.
Krosch farmed at Mukwonago for more than a decade. We don’t know much about his later years. He died on August 7, 1876 at age 77. He is buried among the settlers of Mukwonago at Oak Knoll Cemetery, a short distance from where his farm once stood.

His wife Christiana (Schlagel) Krosch moved to Elmore, Minnesota after being widowed. The 1880 U.S. Census lists her living on the farm of her son, William F. Krosch. She died on December 3, 1884. She is buried near three grandchildren at Dobson Schoolhouse Cemetery in Elmore.
FAMILY LINE: John Frederick Krosch >> Henrietta (Krosch) Treutel >> Walter Treutel >> Ruby (Treutel) Hanneman >> Donn, David and Lavonne Hanneman.
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