Mark,
You are more then likely right. I remember when 297 came to the company. It was about the same time that 316, 390 and 265 arrived. It was a newer ship and I just assumed that those were the tail numbers.
But then again I have gotten to not trust anything I have found without checking half a dozen places first. You would have thought as how anal the army was and is about records, they would have kept better ones.
Ron