Farwell was nominated by the
Whig Party as their candidate in the
1851 Wisconsin gubernatorial election. He defeated his opponent, former Milwaukee Mayor
Don A. J. Upham, and led the Whigs to a strong showing in the Wisconsin Assembly elections
down-ballot, though they did not capture other statewide offices. Farwell's success was likely due to his personal popularity and the contributions he had provided to assist recent immigrants arriving in Wisconsin. He served one term and declined re-nomination in 1853. He was the first and only Whig Governor of Wisconsin. Governor Farwell then proceeded to Secretary
William H. Seward's residence but arrived too late to prevent that attack. President Johnson later offered Farwell any appointment he wanted in the federal government, but Farwell declined, choosing to continue his work in the Patent Office.
Return to the midwest After seven years in Washington, Governor Farwell moved to
Chicago and started a
patent agency, but he fell victim to the
Great Chicago Fire of 1871, and thus abandoned the city. He then relocated to the small town of
Grant City, Missouri, where he entered into a partnership in banking and real-estate, and went on to contribute to the building of a new high school, courthouse, and other infrastructure in the city. On April 11, 1889, after a brief illness, Farwell died in Grant City at the age of 70. He was
interred at the Grant City Cemetery. ==Family life==