Brief Description: The collection relates primarily to Liessin's work as editor of *Zukunft*. Correspondence with over 1000 individuals including Richard Beer-Hofman, Eduard Bernstein, Hayyim Nahman Bialik, Boris Dov Brutzkus, Marc Chagall, Eugene Debs, Simon Dubnow, David Einhorn, Saul Ginsburg, Jacob Glatstein, David Hofstein, Itzhak Katzenelson, Moshe Kulbak, Leib Kvitko, H. Leivick, Jacob Lestschinsky, Judah Magnes, Itzik Manger, Mani Leib, Louis Marshall, Moshe Nadir, Der Nister, Shmuel Niger, Hersh David Nomberg, Isaac Leib Peretz, David Pinsky, Abraham Reisen, Zalman Reisen, Zalman Shneur, Nahum Shtif, Elias Tcherikower, Baruch Charney Vladeck, Max Weinreich, Morris Winchevsky, Hillel Zeitlin, Chaim Zhitlowsky. Manuscripts of Liessin's own articles, poems. Manuscripts submitted by about 620 authors to Liessin as editor. Clippings of poems and articles in the *Jewish Daily Forward* and *Zukunft*. Clippings about Liessin. Personal papers relating to jubilee celebrations, family matters, Liessin's death. Materials on the Bund, 1905.