. "Newspaper clippings, biographical information"@en . "990004381850304146"^^ . . "1954/" . . "Egbert Proschlitz Frankenberg"@en . "Detailed dates of material: 1954."@en . . . . "[4] p.\n\nEnvelope 7/13 ; microfilm reel 063; Frames 1434-1476"@en .