Dear Karel Cassiman,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located the series Various Schutzstaffel (SS) Records, Einwandererzentralstelle, Waffen-SS, and SS-Oberabschnitte (Microfilm Publication T354) in the National Archives Collection of Foreign Records Seized (Record Group 242) that includes some information related to the 27th SS Freiwilligen-Panzer-Grenadier-Division "Langemarck," as well as other SS units. Several guides to the microfilmed records are available online via the National Archives Microfilm Catalog. In the “Microfilm” tab, enter publication number T354 and press “search” to see a list of available guides. The microfilm itself has not been digitized. For access to and information about these records, please contact the National Archives at College Park - Textual Reference (RDT2) at email@example.com.
Next, we located the series Classified Decimal Correspondence Files with Related Index, 1942-1945 in the Records of the Office of the Provost Marshal General (Record Group 389) that includes detention lists of POWs, especially members of Waffen-SS units, for potential use in war crimes trials, and it also contains information about the identification and repatriation of individuals of French, Russian, Belgian, and Polish nationality among German POWs. The series Subject Files, 1942-1946 in Record Group 389 contains so-called "Albino Files," which identify German POWs claiming other nationality status, including Czechs, Belgians, French, Poles, Russians, and Austrians. These records have not been digitized. You may contact RDT2 for assistance with these and similar records.
According to the U.S. Army Center of Military History’s online Order of Battle of the United States Army - WWII, the 8th Infantry Division was in Schwerin in May 1945. We searched the National Archives Catalog and located the series 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 27 files for the 8th Infantry Division in the 1940s. We also located the World War II Operations Reports, 1940-1948 in the Records of the Adjutant General's Office, 1917-1985 (Record Group 407) that includes records of the 8th Infantry Division during WWII. For more information about these non-digitized records, please contact RDT2.
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.
Additionally, the United States Holocaust Memorial Museum (USHMM) provides some information online about The 8th Infantry Division during World War II that includes a reference to Schwerin in May 1945.
Finally, for the information you seek, we suggest you contact The National Archives of the United Kingdom, Kew, Richmond, Surrey, TW9 4DU, United Kingdom.
We hope this information is helpful. Best of luck with your family research!