Dear Mr. Jahn,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the series Former German Prisoner of War Files, 1945-1946, the series Records Relating to German Prisoners of War During World War II, 1943-1952, and the series Records Relating to Enemy Prisoners of War During World War II, 1942-1947 in the Records of the Office of the Provost Marshal General (Record Group 389) that may contain some information about CPI cards. We also located the series Data Cards on German Military, Civilian, and Political Personalities, 1944-1945 and the series Records Relating to Prisoners of War, 1942-1945 in the Records of the War Department General and Special Staffs (Record Group 165) that may be of interest to you. These records have not been digitized. Please contact the National Archives at College Park - Textual Reference (RDT2) at firstname.lastname@example.org for access to and information about these and similar records.
If these records listed above do not contain information about the cards, we suggest that you explore other records created by the War Department's Prisoner of War Operations Division, the Enemy Alien Branch of the War Department's American Prisoners of War Information Bureau, and the Department of the Army's Enemy Prisoner of War Information Bureau in the Catalog.
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.
Finally, the personnel records of World War II German prisoners of war were returned to Germany. For access to these records, please write to the Bundesarchiv - Abteilung PA, Eichborndamm 179, 13403 Berlin, Germany. The email address is email@example.com.
We hope this information is helpful. Best of luck with your research!
Dear Ms. Salyer,
thank you so much for your reply. I will check all hints and let you know, if and where I could find information on this.