8th MO toy soldiers
8th MO Infantry (US)
Company A
Toy Soldiers wearing the Zouave uniform of
the 8th Missouri Volunteer Infantry (US)

There is a bit of confusion about John Redden.   One of the 8th Missouri rosters lists him as "John Redden" and says that he was in company A of the 8th Missouri.   This roster says that he was the ripe old age of 35 when he joined.   It also says that he joined from Warsaw, Illinois.

(Click here for a explanation of why people from other states joined the 8th Missouri)

The confusion comes from the Keokuk, Iowa, cemetery records for him.   These records list two people in Plot 709 of the cemetery: John N Redden and J N Reddern.   Both are listed as Company K of the 8th Missouri.   It is safe to assume that there is only one person in the grave, and that his name is Redden, since Reddern is a rare last name.
You can check out the Keokuk National Cemetery records by CLICKING HERE

A roster of Lee County (Iowa) Civil War veterans shows that John was born in the state of Delaware.   This site puts his age at 33 at the time of enlistment.
You can check out the Lee County veterans list by CLICKING HERE