Studing ACW records and accounts are a puzzle. Some pieces just do not fit. All we can do is take the advise of the Good Book, in which it tells the Christians to not be believe every doctrine that they hear. but to try (test) everything that even the learned ministers say to see if it is good sound doctrine or not.
The same I would say applied to the study of American Civil War. Test everything because too many error and myths have become facts in our legends.