The materials were collected by Fredrick J. Bayer during his service with the MPs during the International Military Tribunal in Nuremberg. They were donated to the United States Holocaust Memorial Museum Archives by his widow, Ingrid Bayer, on 27 Dec. 1993.

http://lod.ehri-project-test.eu/acquisitions/us-005578-irn503805-eng-irn503805_eng an entity of type: Activity

The materials were collected by Fredrick J. Bayer during his service with the MPs during the International Military Tribunal in Nuremberg. They were donated to the United States Holocaust Memorial Museum Archives by his widow, Ingrid Bayer, on 27 Dec. 1993. 
Acquisition 

data from the linked data cloud