Dear Ms. Miner,
Thank you for posting your request on History Hub!
The location of his service records and the procedures for ordering them depend on whether he was an officer or enlisted, and the date that he separated from service.
Service records for Regular Army officers who separate from service on or prior to June 30, 1917 are located at the National Archives in Washington, DC. To request a copy of these records, please download the NATF Form 86, fill it out to the best of your knowledge, and mail the completed forms to the address listed on the form. You also may place your order online using eservices.archives.gov. For more information see Requesting Copies of Older (pre-WWI) Military Service Records.
Service records for Army officers who separate from service on or after July 1, 1917 and enlisted personnel who separated on or after November 1, 1912 are located at the National Personnel Records Center in St. Louis, Missouri. Unfortunately, many of these records were destroyed by the 1973 Fire. In many cases where personnel records were destroyed in the 1973 fire, proof of service can be provided from other records such as morning reports, payrolls, and military orders, and a certificate of military service will be issued. To order these records, please complete a GSA Standard Form 180 and mail it to NARA's National Personnel Records Center, (Military Personnel Records), 1 Archives Drive, St. Louis, MO 63138-1002. If there is any information requested by the SF 180 which you do not know, you may omit it or provide estimates, however the more information you provide, the easier it will be for NPRC to locate the correct file. Likewise, you may attach any additional information you have such as his unit and station information or photocopies of any records you may have already located which may assist NPRC in locating auxiliary records if his OMPF was destroyed by the fire. Please do not attach original copies of family documents as NPRC will be unable to return them to you. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
If you do not know which of these categories he falls under, you may submit orders to both our DC facility using the NATF Form 86 and NPRC using the SF 180.
Copies of most of the monthly rosters from November 1912 to 1943 and morning reports from November 1, 1912 to 1959 are in the custody of the National Archives at St. Louis (RL-SL). For information about these records, please contact RL-SL via email at firstname.lastname@example.org.
We searched the National Archives Catalog and located Registers of Enlistments in the United States Army, 1798 - 1914 in the Records of the Adjutant General's Office, 1762 - 1917 (Record Group 94) that potentially could include a listing for him since he served in 1914. This list only includes information about enlisted personnel. It does not include officers. For more information about these records, please contact National Archives at Washington, DC - Textual Reference (RDT1) via email at Archives1reference@nara.gov.
The Registers are available on Ancestry as U.S. Army, Register of Enlistments, 1798-1914, on Fold3 as Army Register of Enlistments, 1798-1914, and on FamilySearch as United States Registers of Enlistments in the U.S. Army, 1798-1914. Accessing these records via one of these websites requires creating an account with that website. Some libraries provide free access to Ancestry and/or Fold3 to their patrons. FamilySearch is free.
We also located Monthly Returns and Muster Rolls, 1901 - 1918 and Descriptive Lists, 1901 - 1920 in the Records of U.S. Regular Army Mobile Units (Record Group 391) that have records relating to the enlisted soldiers of the 14th Cavalry Regiment. We also located Special Orders, 1908 - 1918 and General Orders, 1913 - 1918 in the Records of U.S. Army Continental Commands (Record Group 393) that potentially could contain mentions of individual soldiers at Fort Clark, although they are unlikely to have information about all the soldiers on the post. These records have not been digitized and are not available online. For more information please email RDT1.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RL-SL and RDT1. Also, the National Archives and Records Administration (NARA) has suspended non-emergency reproduction and digitization services until further notice due to COVID-19. Orders will not be serviced until operations can resume safely. Once operations resume, document reproduction requests will be filled in the order in which they were received. We apologize for any inconvenience.
We hope this is helpful. Best of luck with your family research!