Korrespondenz von New York City Center an Henry Marx

Great Northern Hotel <New York, NY>

Deutsches Theater <New York, NY>

Düsseldorfer Schauspielhaus

World <New York; Berlin>

International Artists Productions <New York, NY; Frankfurt, Main>

Players from abroad <New York, NY>

Actor's Studio <New York, NY>

Düsseldorf / Information and Tourist Office <New York, NY>

Keystone view company <New York, NY u.a.> / Pressebüro und Illustrationsverlag <Berlin>

New York Public Library

Lucy Kroll Agency <New York, NY>

Music Theatre International <New York, NY>