I've have heard that from several noted researchers who have worked extensively in the National Archives records researching materials for their books. Why do you think that they in the last 10 years published 100 plus volumes of supplements to the Original O.R.'s containing materials which was left out in the first printing. There are plenty of records which are still to be researched which were taken from the Confedrate War Department in 1865. All you have to do to verify this is to look at the NARA index of records and find out what they have that is NOT available on Microfiche.

It wasn't 40 years ago that the National Archive suddenly mysteriously found in the Library of Congress the bills for expenses of Gen George Roger Clark's Illinois expedition during the Revolutionary War. Congress told General Clark when he asked for payment for his expenses that they had never recieved those bills and refused to pay for the Expedition. Read the footnotes in a couple of Allen Eckert's or Alexander Thom's books. They are a couple of the best historical researchers I have read after Civil War or otherwise.

The fact of the matter is that the Combined Muster Rolls are not the original records and are not complete. They are just the best records that we presently have and most likely will have.