Civil War soldiers from Burnett, Dunn, Eau Claire, Pepin, Pierce, Polk, and Saint Croix counties in northwest Wisconsin, plus a few nearby Minnesota residents who enlisted in companies from northwest Wisconsin.
This is a work in progress!
Soldiers Living in the Area When They Enlisted:
Alphabetical List of All Soldiers from Northwest Wisconsin
Companies Comprised Mainly of Soldiers, or with a Large Number of Soldiers, from Northwest Wisconsin
Soldiers from Northwest Wisconsin Serving in Minnesota Regiments
Soldiers from Northwest Wisconsin Serving in U.S. Colored Troops
Soldiers Killed in Action or Died from Wounds
Soldiers Who Died from Illness or Disease
Veterans Who Moved to the Area After the War:
Alphabetical List of All Soldiers Who Moved to Northwest Wisconsin After the War – this is a work in progress
List by County
The Civil War and Northwest Wisconsin 
My 3rd Great Grandfather John O Beardsley enlisted with The 50th Wisconsin Infantry Regiment Company G on Mar 8, 1865. I actually have his Civil War Pension file.
I am researching Captain Myer Asch, 1st NJ Cavalry, who was an Aide-de-camp of General John Pope. He served in the Department of the Northwest when General Pope was sent there in 1862. Capt Asch was there from then until Feb-March 1864 during which time he was also General Pope’s Cief of Cavalry. Do you by chance have any information on Capt Asch?
That question sounds very familiar, like we have answered it before. The answer is no, we do not have anything on soldiers who served in New Jersey cavalry regiments, even if they were in the Department of the Northwest. Our collections are very localized to our 4-county area. But it is entirely possible that something will appear in a newspaper article in coming months. Our little local newspapers are only indexed for birth, death, and marriage notices of local people, so we won’t know if there is something in a newspaper until we come across it. Have you contacted either the Wisconsin Historical Society or the Minnesota Historical Society? They seem like more likely places to have something.