Willis C. Silverthorn graduated from the University of Wisconsin law school and was admitted to the Wisconsin Bar. He began his career in public service as Marathon County District Attorney before being elected to the Assembly. Silverthorn transitioned from the banking sector into the judiciary, serving on various legislative committees related to banking and the judiciary. He later returned to private business after a tenure on the Wisconsin Circuit Court. Throughout his career, Silverthorn consistently engaged in Wisconsin's political landscape, running for multiple state offices.

Willis C. Silverthorn's political career is marked by an ideological fluidity that defies traditional party lines, notably transitioning from Democrat to Reform Party, while consistently advocating for banking and financial reforms. His legislative focus on judiciary and banking suggests a highly localized approach, tailoring policies to regional economic needs. Silverthorn's appointment to a Wisconsin Circuit Court seat further underscores his strategic alignment with financial interests. His rhetoric likely weaves together a narrative of regional economic stability with progressive financial policies, creating a unique ideological blend that merits deeper exploration.