I came across this list of captured Wisconsin flags in my files and tought it might be of interest to you. The obtained this list from the Wisconsin Veterans Museum in Madison.

Keep up the good work.

Ryan Toews

Flags of Wisconsin regiments captured or lost during the Civil War

1st Wisconsin Cavalry, captured at Varnell’s Station, Georgia, by Corporal T. Goodwin, Co. C, 3d Arkansas Cavalry Regt., May 9th, 1864. Flag was returned to Wisconsin, but apparently by means other than the War Department. Collection of Wisconsin Veterans Museum. Related article: The Wisconsin Magazine of History: Volume 2, number 1, Sept. 1918, pp.100-101.

8th Wisconsin Infantry, Company flag (Co. C), left behind or captured at Holly Springs, MS, December 1862. Recaptured by an Illinois Cavalryman during the war. Collection of Wisconsin Veterans Museum.

19th Wisconsin Infantry, Fair Oaks, Virginia, October 27 1864, Capt. James Bell of 7th Georgia. Note on identification: The 19th received flags in 1862 and 1865. Both 1862 flags and the 1865 National is currently in the collection of the Wisconsin Veterans Museum. More research should be done to confirm the capture and presumed return of the 19th’s Color.

21st Wisconsin Infantry, Regimental or possibly Regimental and National, Chickamauga, attributed to 1st Mississippi, but likely 21st Mississippi. Returned to Wisconsin by War Department in 1905. Collection of Wisconsin Veterans Museum.

26th Wisconsin, Regimental, Gettysburg, by 12th Georgia. Never recovered. The corresponding National is in very poor condition, which suggests the Regimental was unlikely to have survived the war.

36th Wisconsin, National, to 44th North Carolina on August 25th, 1864, returned to Wisconsin by War Department in 1905. Collection of Wisconsin Veterans Museum.

Incidences of temporary loss:

6th Wisconsin Infantry, flag briefly lost but recovered during battle of Antietam. Some dispute over incident.

23rd Wisconsin Infantry, battle of Carrion Crow Bayou, La., Color Bearer Sgt. George W. Johnson was severely wounded in legs. To save the flag from the enemy he hid the flag beside a log and covered it with leaves. His comrades recovered it the next day.

Note: Of the 13 Light Artillery Batteries, only the flags of the 1st, 4th, 6th, 10th and 12th are at the Wisconsin Veterans Museum. There is apparently no record of what became of the flags of the other batteries.

List from Wisconsin Historical Society