"Acquisition" . "The papers in this collection were received or created by Robert Stern and apparently passed down through the family to the donor, who is the son of Robert Stern's brother. The donor entrusted them to Joan Ringelheim of the United States Holocaust Memorial Museum in Aug. 1992. Dr. Ringelheim turned them over to the United States Holocaust Memorial Museum Collections department that same month, and that department in turn transferred them to the United States Holocaust Memorial Museum Archives in Sept. 1992."@eng . .