No joy re his middle name. You may find out more by obtaining his Compiled Service Records which may be procured through the service noted in the Red enclosed box above. When ordering, also ask for pension papers if available.

The info below does not mention POW status.

Nelson O. Caroyl

Residence was not listed; 22 years old.

Enlisted on 8/12/1861 at Niles, MI as a Private.

On 10/15/1861 he mustered into "B" Co. MI 9th Infantry
He Re-enlisted on 12/25/1863
He was Mustered Out on 9/15/1865 at Nashville, TN
(Re-enlisted at Chattanooga, TN)

Promotions:
* Corpl 12/7/1863
* Sergt 10/18/1864
* 1st Sergt 5/6/1865

Sources used by Historical Data Systems, Inc.:
- Record of Service of Michigan Volunteers 1861-65