Dear Mr. Williams,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located 9 file units in various record groups relating to the 66th Counter Intelligence Corps Group. Please note that some of the records have been digitized and may be viewed using the Catalog. For access to non-digitized 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 RDT2. We apologize for this inconvenience and appreciate your understanding and patience.
Also, we searched online and located the following resources that might be of interest to you:
- Lineage and Honors Information Headquarters and Headquarters Company 66th Military Intelligence Brigade available on the website of the U.S. Army Center of Military History
- 66th Military Intelligence Brigade Website available on the website of the website of the United States Army Intelligence and Security Command
- History of the 66th Military Intelligence Brigade available on the website of the U.S. Army in Germany
We hope this is helpful. Best of luck with your research!