Wisconsin supplied 91,379 troops to support the Union in the form of 53 infantry regiments, 14 artillery units, and 3 cavalry regiments. 

• Researching Your Civil War Ancestor in Wisconsin
• Wisconsin Civil War Regimental Histories
• Roster of Wisconsin Volunteers, War of the Rebellion, 1861-1865
• Carroll College Civil War Institute
• Wisconsin GAR Posts
• Civil War Training Camps in Wisconsin
• Old Abe, the Civil War Eagle
• Wisconsin Women in the War Between the States

• 2nd Wisconsin Volunteer Infantry Association
• 3rd Wisconsin Veteran Volunteer Infantry
• 4th Wisconsin Cavalry
• 5th Wisconsin Volunteer Infantry
• 7th Wisconsin Volunteer Infantry
• 13th Wisconsin Volunteer Infantry
• 15th Wisconsin Volunteer Infantry
• 21st Wisconsin Volunteer Infantry
• Company I, 21st Wisconsin Volunteer Infantry
• Company D. 23rd Regiment, Wisconsin Volunteers
• 24th Wisconsin Volunteer Infantry
• 26th Wisconsin Infantry Volunteers
• 28th Wisconsin Volunteer Infantry
• 33rd Wisconsin Volunteer Infantry
• 33rd Wisconsin Volunteer Infantry
• 36th Wisconsin Volunteer Infantry
• 43rd Wisconsin Volunteer Infantry
• 47th Wisconsin Volunteer Infantry