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Collection Vietnam-Era Prisoner-of-War/Missing-in-Action Database

About this Collection

This database grants access to U.S. government documents related to American military personnel unaccounted for from the Vietnam War. These files provide information on the treatment, location, and condition of U.S. service members missing in action.

Many of the original files have been digitized, although some are only available as microfilmed copies. To access these documents, please contact the Library’s Microform Reading Room.

One report in the most recent set of documents details material evidence found during underwater recovery operations conducted by the Defense POW/MIA Accounting Agency (DPAA) from a crash site located in Khanh Hoa Province, Vietnam. The evidence is correlated with REFNO 1775, the October 26, 1971 loss of a U.S. Army CH-47B series helicopter, with six unaccounted-for crewmembers. Analysis of the evidence recovered by the excavation team identified it as a flying helmet and oxygen mask carrying bag. Alphabetical characters—possibly “B”, “R”, “G”, and “E”—were found printed on the bottom of the bag.

The title of this collection is "Correlated and Uncorrelated Information Relating to Missing Americans in Southeast Asia." It consists of a database of more than 160,000 metadata records designed to assist researchers in searching and accessing original U.S. Government documents pertaining to U.S. unaccounted-for personnel from the Vietnam conflict. The U.S. Department of Defense POW/MIA Accounting Agency (DPAA), formerly the Department of Defense POW/Missing Personnel Office (DPMO), declassifies these documents and releases them to the Federal Research Division of the Library of Congress for metadata tagging and posting them online for public access. The Vietnam War dates from November 1955 through April 30, 1975. The items in this Collection date from this period and, since the search for the unaccounted for is still active, are still updated quarterly.

Title X of the National Defense Authorization Act for Fiscal Years 1992 and 1993, commonly referred to as the “McCain Bill,” required the Secretary of Defense to make information related to the treatment, location, or condition of U.S. personnel who are unaccounted for from the Vietnam War available to the public in a “library-like location within a facility within the national capital region for public review and photocopying.” A research entity within the Library, the Federal Research Division (FRD), was selected for this task. This Collection replaces the same collection that used to appear on the FRD website at

The Library has maintained online access to the metadata and most of the original records via this database since 1994. For some of the oldest metadata records, however, online access to the original document may not be available. In order to see the original records not available online, contact the Library of Congress Microform Reading Room at 202-707-4773 to obtain access. Be prepared to provide the Reel number and Page numbers of the document you wish to obtain. The database was last updated on October 27, 2021. It contains 163,649 records with 162,451 records having accompanying PDFs and 1,198 records with no accompanying PDFs.