Manson L. Williamson died at Iuka, Mississippi (August 29); Joseph Govenal died at Fort Scott (August 30); Brigadier General Tredway resigned as quartermaster general (August 30 — last of August); the Twenty-third and Twentieth regiments were mustered in at Camp Randall (August 30) and the Twentieth left the state. [P317? no]

The evidence

• “Williams, Manson L. Williamson (sergeant, died August 29, 1862, luka. Miss.), Martin P.”

  1908-brown-rock-county/16-military-history.md, Vol. 1, PDF p. 368 / book p. 338

  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.

  Grade A: Found on a page of one of our sources