Dear Ms. Johnson,
Thank you for posting your request on History Hub!
The information you seek may be contained in his Individual Deceased Personnel File (IDPF). IDPFs from 1940-1976 for U.S. Army personnel with surnames that begin with A-L are in the custody of the National Archives at St. Louis (RL-SL). Also, morning reports for Army units from November 1, 1912 to 1959 are in the custody of RL-SL. For more information about these records, please contact RL-SL via email at email@example.com.
We searched the National Archives Catalog and located a series titled Unit Histories, 1943 - 1967 in the Records of U.S. Army Operational, Tactical, and Support Organizations (World War II and Thereafter) ( Record Group 338) that includes 72 files pertaining to the 27th Infantry Regiment. For access to and/or copies of this/these records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org.
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 RDT2. We apologize for this inconvenience and appreciate your understanding and patience.
For the IDPFs from 1940-1976 of personnel with surnames that begin with M-Z, please write to U.S. Army Human Resources Command, Casualty & Memorial Affairs Operations Division, ATTN: AHRC-PDC, 1600 Spearhead Division Avenue, Department 450, Fort Knox, KY 40122-5405. They are being scanned by the Defense POW/MIA Accounting Agency in order to properly identify remains of those still listed as missing.
We hope this is helpful. Best of luck with your research!
Thank you Jason!