Found this on the internet, interesting, the 5th South Carolina Cavalry Regiment lost their flag at Trevilian Station to a New York Cavalry regiment.

http://news.google.com/newspapers?id=l5E0AAAAIBAJ&sjid=uKkFAAAAIBAJ&pg=1657,2961245&dq=history+of+iowa+cavalry+regiments+during+the+civil+war&hl=en

Have a good weekend,

Shawn