The fonds consists of two series: the Roma Research series and a Publications series composed of copies of Cohn's publications. The first series includes material generated or collected by Cohn in the course of researching Roma. It includes audiotaped interviews of Rom with notebooks containing descriptions and analysis of the conversations; a computer-generated inventory of kinship ties among hundreds of North American Roma; a transcript of a New York trial (1962) of a Roma fortune teller; miscellaneous printed and published materials on Roma, collected by Cohn; and materials from a correspondence course for learning Romani (1969/70). The research series also contains photographs (1968-74) of Roma taken by Cohn throughout North America and Europe. The Publications series includes copies of Cohn articles (1959-1993) and a bibliography of his works (1950-1993).