4th Regiment, Wisconsin Cavalry,
The 4th Regiment, Wisconsin Cavalry,was organized at Racine, Wisconsin and it was mustered in July 1861.It was mustered out at Brownsville May 28, 1866. It then moved to Madison, Wisconsin, June 3-18, and was discharged June 19, 1866. 
For more information on the history of this unit, see
- The Civil War Archive section, 4th Regiment Cavalry, (accessed 23 November 2012).
- The Wikipedia Article, 4th Wisconsin Volunteer Cavalry Regiment, (accessed 23 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 counties of origin are taken from the 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 - Roster, page 158.
Company B - Roster, page 162.
Company C - Roster, page 167.
Company D - Roster, page 170.
Company E - Roster, page 174.
Company F - Roster, page 178.
Company G - Roster, page 182.
Company H - Roster, page 185.
Company I - Roster, page 189.
Company K - Roster, page 192.
Company L - Roster, page 196.
Company M - Roster, page 198.
Unassigned Recruits - Roster page 200.
- 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.
- United States Colored Troops in the Civil War lists additional sources about the African American troops.
- 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. Madison: Democrat printing co., state printers, 1886.