The papers consist of correspondence, publications of The New Fraternity, and other books, pamphlets, and unpublished writings of George Frederick Gundelfinger who made a lifetime crusade of sending his publications and moral admonitions to Yale University. Yale's suit against him in 1939 for sending obscenity through the mail is documented by trial transcripts. Also in the papers are photographs, newspaper clippings, printed matter, and books on mathematics. There is also an edited diary describing a family tour of Europe in 1908.