"1 digital file, WAV"@en . . . "2018 April 22" . . "No restrictions on use"@en . . . "Oral history interview with Frank Engelsmann"@en . . . . "No restrictions on access"@en . "irn611769" . . "United States Holocaust Memorial Museum"@en . "Gail Schwartz, on behalf of the United States Holocaust Memorial Museum Oral History Branch, conducted the interview with Frank Engelsmann on April 22, 2018 in Potomac, MD."@en . .