"Maria Klein papers"@en . "folder\n\n1"@en . . . "The papers consist of photographs depicting Maria Klein, her mother, Estera Lifszyc, and her brother, Rubin Lifszyc, in Warsaw, Poland, before World War II, a driver's license \"Pozwoleni\") issued to Rubin Lifszyc in 1938, and two telegrams sent on October 18, 1945, from the R.A.F. informing Maria Klein that her brother was confirmed missing when his plane crashed into the sea on a cross-country flight."@en . . "United States Holocaust Memorial Museum"@en . . "irn514074" . . . . . . . .