Seeking records of 503rd Infantry Regiment

Chris,

Here is some information, hope its not repetitive.

https://archive.org/details/vietnamsecondyea00mcka

https://archive.org/details/DTIC_AD0855104/mode/2up

https://archive.org/details/DTIC_AD0388135/mode/2up

Please check these out as well Situation Reports (SITREPS), 8/1965 - 12/1970; Operational Reports - Lessons Learned (ORLL), 5/1/1965 - 4/30/1971; Daily Journals, 5/1965 - 12/1970; After Action Reports (AAR), 7/1965 - 8/1971; Command Reports, 5/1965 - 8/1971; and Command Historian After Action Reports, 1965 - 1972 in Record Group 472 that are records of the 173rd Airborne Brigade that may provide a higher level perspective of the events during 1965 - 1966. For questions about these records, please contact RDT2.

For more information about these records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at archives2reference@nara.gov.

The specific information you seek may be contained in your relative’s Individual Deceased Personnel File (IDPF). IDPFs from 1940-1976 for personnel with surnames that begin with A-L are in the custody of the National Archives at St. Louis (RL-SL). For access to these records, please contact RL-SL via email at stl.archives@nara.gov.

For the IDPFs 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.

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 RDT2 & RL-SL. We apologize for any inconvenience.

Dear Chris Parris,

Thank you for posting your request on History Hub!

We searched the National Archives Catalog and located the After Action Reports, 1965 - 1972 in the Records of the U.S. Forces in Southeast Asia (Record Group 472) that includes two reports of the 173rd Airborne Brigade during the battle of Dak To (Hill 875). We also located the Infantry Unit Records, 1965 - ca. 1973 in Record Group 472 that includes records of the 2/503rd Infantry Regiment during 1965 - 1971 (Boxes 1117 - 1152). For more information about these records, please contact the National Archives at College Park - Textual Reference (RDT2) at archives2reference@nara.gov.

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 RDT2. We apologize for this inconvenience and appreciate your understanding and patience.

We hope this is helpful. Best of luck with your research!