United States World War I Service Records

Official Military Personnel Files
The National Personnel Records Center (NPRC) in St. Louis maintains World War I Official Military Personnel Files (OMPFs).

Access to Non-Archival Military Service Records is limited. Non-Archival records are those of service members who separated from the military less than 62 years ago. See Access to Non-Archival Records for more information. Records of individuals who left service more than 62 years ago are considered Archival Records and become records of the National Archives open to the general public.

Order records from the National Personnel Records Center, in St. Louis at the Start your Military Service Record Request page at the National Archives website.

Records Loss
On July 12, 1973, a fire at the NPRC destroyed approximately 16-18 million Official Military Personnel Files. The affected record collections are described below.

No duplicate copies of the records that were destroyed in the fire were maintained, nor was a microfilm copy ever produced. There were no indexes created prior to the fire. In addition, millions of documents had been lent to the Department of Veterans Affairs before the fire occurred. Therefore, a complete listing of the records that were lost is not available. Nevertheless, NPRC uses many alternate sourcesin its efforts to reconstruct basic service information to respond to requests.

Indexes
Indexes mentioning some sailors are the following:


 * Index to Rendezvous Reports, Naval Auxiliary Service, 1917–1918. National Archives Microfilm Publication T1100. (Family History Library film ) Lists the name, enlistment date, date of assignment, and place.
 * Index to Rendezvous Reports, Armed Guard Personnel, 1917–1920. National Archives Microfilm Publication T1101. (Family History Library films ) Lists the name, enlistment date, rank, dates of service, and name of vessel served on.

National Guard
{https://www.familysearch.org/search/catalog/4092224 New York. Records of the State National Guard, 1906-1954]
 * Florida state militia, state troops and national guard, 1870-1918
 * Louisiana. National Guard records, 1717-1955
 * Maine. military records, 1700-1940 Includes National Guard Cardds, 1900-1940
 * Debra F. Graden. Index of the Missouri National Guard Jan. 1, 1917 - Dec. 31, 1920.Leavenworth, Kansas : Grey Ink, c2001 FHL 977.8 M22g
 * Oregon National Guard. military enlistment and service records, 1887-1924; index, 1848-1928, 1887-1924
 * Rhode Island. Militia and national guard enlistment papers, 1890-1919
 * Vermont, National Guard, World War I, 1917-1918

Other Sources
State archives in the state where your ancestor lived may have records. (For addresses, see the state WWI articles.)

County courthouses may have discharge papers. (For addresses, see Everton's Handybook for Genealogists or the internet.)

Check with a nearby Veterans Administration for other kinds of records such as hospital and disability records.