The bulk of the collection consists of manuscripts by Block and others, and appears to be derived from his activities as founding editor of ONE Magazine in 1953, and from his involvement with the Celebration Theatre in the 1980s. Block's own writings include poetry and a self-assessment. Materials by others that may relate to Block's involvement with ONE Magazine include a synopsis for a play, Behold Your Calling, by Ramon Mendez, and a short story, From a Soldier's Notebook: The Joy of Lightning. A contemporary note was penned on the title page, "Howard Griffin c/o the Hon. Dorothy Brett, Taos, N.M.," suggests that the author may have been John Howard Griffin (1920-1980), a southern writer with many connections to the Taos area. Materials relating to the Celebration Theatre include playbills, flyers, financial records, and the pamphlet An Introduction to the Celebration Theatre, which includes an essay by Block, On the Nature of Gay Theatre. The correspondence file contains correspondence relating to Block's career in publishing, and to personal matters. It includes an acetate-covered cardboard "voice-o-graph" disk, postmarked November 20, 1946, and marked "Coney Island." The clippings file also contains materials concerning Block's career in publishing, as well as other items of personal interest. A transcript of an interview with Block provides information on his life and on the founding of ONE, Inc. Materials in the ephemera file consist primarily of several playbills, and flyers from Block's career in publishing. Charles D. Rowland (1917-1990) was a long-time friend and as a producing director of the Celebration Theatre, a colleague of Block: Rowland's file contains a copy of his will (with Block named as executor) and tributes from his memorial service.