Columbia subject headings:
Jonas, Klaus W.--Correspondence.
Mann family--Correspondence.
Mann, Thomas, 1875-1955--Family.
Harvard subject headings:
Authors, German--20th century--Biography
Authors, German--20th century--Correspondence
Bibliographers--Germany--Biography.
Jonas, Klaus W.--Correspondence.
Mann family--Correspondence.
Mann family.
Mann, Thomas, 1875-1955--Correspondence.
Mann, Thomas, 1875-1955--Family.
Princeton subject headings:
Jonas, Klaus W.--Correspondence.
Mann family--Correspondence.
Mann, Thomas, 1875-1955--Family.