If you're looking for a single individual. we can check his records to see if he was imprisoned there.
Here are two from the 1st Alabama
Samuel P. Rainwater, Private, Company D, 1st Alabama Infantry, captured at Island No. 10 April 10, 1862, arrived at Camp Randall, Wisconsin prison camp, guarded by 19th Wisconsin Volunteers April 24, convalescent prisoner remaining at Camp Randall, sent to Camp Douglas, Chicago, Ill. June 23, 1862, died, debility, at Camp Douglas September 2/3, 1862, a couple of days before his scheduled transfer to Vicksburg, Miss. for exchange
...
James Waites, Private, Company D, 1st Alabama Infantry, captured at Island No. 10 April 10, 1862, arrived at Camp Randall, Wisconsin prison camp, guarded by 19th Wisconsin Volunteers April 24,
M311: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Alabama