On Mar. 3, 1847, Governor Alpheus Felch resigned to become a U.S. Senator instead, and in the process served the shortest gubernatorial tenure in state history — 10 months.
Sources :
Michigan is Amazing
Stewards of the State The Governors of Michigan. George Weeks ; edited by Robert D. Kirk ; contributing authors: Paula L. Blanchard, Don Weeks. [Detroit, Mich.] : The Detroit News ; Ann Arbor, Mich. : Historical Society of Michigan, 1987. Basement Center Oversize Collection JK5851 .W443 1987