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I have been researching my family genealogy for quite a while. I thought I had found all I was gonna get until I found out about my fathers side of the family. William B. Canady, was a sergeant in the 4th NC Cavalry. It later said he became a "POW of the Armies of Northern Virginia." How did he become a POW, is it possible for them to take other Confederate Soldiers as Prisoner's of war? Someone PLEASE HELP ME!