April 1864
The governors of five states, including Wisconsin, persuaded the United States government to accept 80,000 volunteers for 100 days' service.
Nation and worldGrade A · 1 independent source
The evidence
“In April, 1864, the governors of five states, including Wisconsin, persuaded the United States government to accept 80,000 volunteers for a service of 100 days (on the terms of regular soldiers' pay and no bounties), to hold cities and camps then occupied by veteran troops, thus releasing the veterans for service at the front. There would be no battles and wounds, but just army camp life—the romance of war.”
1908-brown-rock-county/16-military-history.md, Vol. 1, PDF p. 389 / book p. 358
Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.
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On the printed page (Vol. 1, PDF p. 389 / book p. 358) · open the whole page