. "United States Holocaust Memorial Museum Collection, Gift of Helen and William Luksenburg\n\nFunding Note: The cataloging of this collection has been supported by a grant from the Conference on Jewish Material Claims Against Germany.\n\nThe William and Helen Luksenburg donated the William and Helen Luksenburg photograph collection to the United States Holocaust Memorial Museum in 1988 and 2005. There are two accession numbers associated with this collection, 1988.132 and 2005.441."@en . .