http://lod.ehri-project-test.eu/units/us-005578-irn50989/acquisitions/1 an entity of type: Activity rico:generalDescription The collection was donated to the United States Holocaust Memorial Museum in 2013 by Leo Roos, the son of Andries Roos. rdf:type rico:Activity rico:hasActivityType ehri:AcquisitionType data from the linked data cloud