Albert Hofstadter/ Richard Kuhns (EDT)
(1)
Clarence L. Ver Steeg (EDT)/ Richard Hofstadter (EDT)
(1)
Richard Hofstadter (EDT)/ K. Beatrice (EDT)/ Beatrice K. Hofstadter (EDT)
(1)
Richard Hofstadter/ Roger L. Geiger (INT)
(1)
Richard Hofstadter/ Sean Wilentz (EDT)
(1)
Richard Hofstadter/ Sean Wilentz (FRW)
(1)