You may want to see this page http://www.carlisle.army.mil/AHEC/USAMHI/researchinquiries.cfmhttp://www.carlisle.army.mil/AHEC/USAMHI/researchinquiries.cfm The U.S. Army Military History Institute's Patron Services Division provides researchers with professional direction and assistance in identifying and obtaining access to relevant resources and services needed to accomplish their studies.........
Inquiries: The Institute welcomes inquiries from official and unofficial patrons; however, USAMHI does not perform in-depth research. We provide reference information about our holdings here and can sometimes look in a specific source identified by a requestor, but we are not resourced to do more. We receive and answer tens of thousands of inquiries during the course of a year. Our staff is small and the workload increases with each passing year. Official inquiries take precedence.
near bottom of that page is a link You are urged to review the list of Frequently Asked Questions as it may answer many of the questions you have regarding information available at USAMHI and elsewhere.
If you cannot travel to USAMHI to perform research you may click HERE to submit a research inquiry on-line.