This Picture is of soldiers of the 11th New York Infantry (First Fire Zouaves) At the time this picture was taken there were prisoners from a few regiments. Regiments like the 69th New York, 11th New York and the 79th New York. Is this picture you can see two soldiers lurking in the backround. They are soldiers the 79th N.Y. Highlanders. Visible are the cuffs on their specialized jackets. I highlighted (pointed at them actually) them.