Which is very sad. I am able to get most of my four great-grandfather's Civil War records but not my Father's WWII records.
Yes. The Civil War records, both unit and personnel, are at the main Archives building on the Mall in the center of Washington DC. And at various state archives.
Here is NARA’s account of the fire:
http://www.archives.gov/st-louis/military-personnel/fire-1973.html
What is not mentioned are the allegations of it either being deliberately set by a disgruntled employee, or accidental from a cigarette that was left on a shelf or ashtray and never properly put out.
it shall not be the barren Barracuda, my promise.