My great-great uncle served with the First New York Veteran Cavalry, and in his diary, he mentions that his regiment captured one of the Imbodens. I am not sure which one, but even though my great-great uncle was a Union soldier, he spoke highly of your ancestor. If you would like more specifics, I will get out the diary and write back to you.
Nancy Armstrong
Please feel free to e-mail me at Lass53@aol.com