Columbia subject headings:
Boy-Ed, Ida, 1852-1928--Correspondence.
Grautoff, Otto, 1876-1937.
Mann, Thomas, 1875-1955--Correspondence.
Harvard subject headings:
Boy-Ed, Ida, 1852-1928--Correspondence.
Grautoff, Otto, 1876-1937.
Mann, Thomas, 1875-1955--Correspondence.
Princeton subject headings:
Boy-Ed, Ida, 1852-1928--Correspondence.
Grautoff, Otto, 1876-1937--Correspondence.
Mann, Thomas, 1875-1955--Correspondence.