Please see link regarding members of the 121st Cavalry Reconnaissance Squadron that were buried overseas. Please click on the individual soldiers for information. https://www.abmc.gov/db-abmc-burial-unit/121st-cavalry-reconnaissance-squadron
Dear Marisa Kinard,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the file Cavalry Reconnaissance Squadrons: 121 (National Archives Identifier 778230), which is found in the Series: Reports of Activities, 1945 - 1945. Supreme Headquarters Allied Expeditionary Force. Twelfth Army Group. Armored Section. Record Group 331: Records of Allied Operational and Occupation Headquarters, World War II.
If you are looking for another time period or region, we located the series Records Relating to the History of the War Department, 1918 - 1941 (documenting 1898 - 1941) in the Records of the War Department General and Special Staffs (Record Group 165) that contains documents relating to the activities of [aero squadrons, air intelligence, the Air Service, arsenals, aviation fields, Cavalry regiments, chemical services, Coast Artillery Corps units, the Engineer Corps, forts and camps, the Intelligence Corps, military schools, the Quartermaster Corps, remount services, the Spanish American War, tables-of-organization, training, and the Transportation Corps].
And, we located a series titled Cavalry Unit Records, ca. 1965 - ca. 1973 in the Records of the U.S. Forces in Southeast Asia (Record Group 472).
For more information about these non-digitized records, please contact the National Archives at College Park - Textual Reference (RDT2) at firstname.lastname@example.org.
We hope this information is helpful. Best of luck with your family research!