Correspondence of Fabijanovic and his wife, writings, photos, newspaper clippings, and an obituary of Fabijanovic from Freedom relate to his philosophical and anarchist thought, a bakery and confectionery workers' union, the publication and distribution of his papers, his travels, and personal matters. Among the correspondents are Louis Adamic, John B. Barnhill, Norman Beard, natural pathologist Otto Brunner, Karl Dopf, Enrique Flores Magon, Wilhelm Fox, Charlotte Francke-Pellon, Emma Goldman, Rudolf Grossman, Max Metzkow, Max Nettlau, Carl Nold, Nicholas Petanovic, Charles L. Robinson, Rudolf Rocker, Stefan Zweig, and family members. The papers are in English, French, German, Hungarian, and Serbo-Croatian.
The papers comprise correspondence, manuscripts, and photographs, and relate to philosophical and anarchist thought, union activities (Bakery and Confectionery Workers), his travels, publication and distribution of his papers, social comment and personal matters. There are several series of transcribed correspondence with added commentary, intended for publication; also of correspondence with and about Rudolf Grossman, who defaulted on a publishing agreement. There is a group of papers on general subjects written as night school assignments. A few letters are addressed to his wife. The materials are in English, German, Hungarian, and Serbo-Croatian.
Among the correspondents are Louis Adamic, John B. Barnhill, Norman Beard, natural pathologist Otto Brunner, Karl Dopf, Enrique Flores Magon, Wilhelm Fox, Charlotte Francke-Pellon, Emma Goldman, Rudolf Grossman, Max Metzkow, Max Nettlau, Carl Nold, Nicholas Petanovic, Charles L. Robinson, Rudolf Rocker, Stefan Zweig, and family members.