5th Regiment, Wisconsin Infantry,
The 5th Regiment, Wisconsin Infantry was organized at Madison, Wisconsin, and it was mustered in July 12, 1861.It went to Richmond, Virginia, and Washington, D. C., May 18-June 2. There was a Corps Review June 8.It was mustered out June 24 (three Companies) and July 11, 1865. 
For more information on the history of this unit, see:
- The Civil War Archive section, 5th Regiment Infantry, (accessed 16 November 2012).
- The Wikipedia Article, 5th Wisconsin Volunteer Infantry Regiment, (accessed 16 November 2012).
Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
The following company links are to rosters taken from Roster of Wisconsin Volunteers, found on the Internet Archives web site. The rosters show the men who served in each regiment, their residences, dates of enlistment and mustering out, and other remarks.
Company A - most men from Manitowoc County and many from Dunn County - Roster page 439.
Company B - Roster page 441.
Company C - Roster page 444.
Company D - Roster page 447.
Company E - Roster page 450.
Company F - Roster page 453.
Company G - Roster page 456.
Company H - Roster page 459.
Company I - Roster page 461.
Company K - Roster page 465.
Unassigned Recruits Roster page 469.
5TH REGIMENT, WISCONSIN INFANTRY REORGANIZED
Company A - Roster page 471.
Company B - Roster page 474.
Company C - Roster page 477.
Company D - Roster page 479.
Company E - Roster page 481.
Company F - Roster page 483.
Company G - Roster page 485.
Company H - Roster page 487.
Company I - Roster page 489.
Company K - Roster page 490.
Company I - Roster page 492.
- Beginning United States Civil War Research gives steps for finding information about a Civil War soldier or sailor. It covers the major records that should be used. Additional records are described in 'Wisconsin in the Civil War' and 'United States Civil War, 1861 to 1865' (see below).
- National Park Service, The Civil War Soldiers and Sailors System, is searchable by soldier's name and state. It contains basic facts about soldiers on both sides of the Civil War, a list of regiments, descriptions of significant battles, sources of the information, and suggestions for where to find additional information.
- Wisconsin in the Civil War describes many Confederate and Union sources, specifically for Wisconsin, and how to find them.. These include compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- United States Civil War, 1861 to 1865 describes and explains United States and Confederate States records, rather than state records, and how to find them. These include veterans’ censuses, compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- National Park Service, The Civil War Soldiers and Sailors System, (accessed 6 December 2010).
- Wisconsin. Roster of Wisconsin Volunteers, War of the Rebellion, 1861-1865. Volume I. (Madison: Democrat Printing Company, State Printers, 1886)