> not all the CS prisoners at Ft. Delaware chose to return to CS control.
> Rather they took the oath of allegiance or joined the Union army.
> That may have been an option that John Frank Johnson took.

What's confounded me for years about John Frank Johnson is that, after the war, he was heading for Illinois with his family when they turned back, split up, and (as his wife and kids returned to VA) he settled in West Virginia, starting a new family. Some of his great grandsons have called him, among other insults, a turncoat traitor. I'd always thought it was because he settled among Yankees after the war. But - perhaps it is because he broke with the Confederates, maybe even fought for the Union?

If he made such an oath or switched sides, would there be some record of it among Union documents? Wouldn't the Confederates have considered it treason, and built a case against him, records of which would be stored somewhere?