The intellectual origins of information organization (IO) as a field of study are examined by tracing the use of the terms, "information organization", "knowledge organization", "bibliographic control", and their variants, and by surveying the educational texts dealing with the various component activities of IO, along with reports and discussions of corresponding curricula, across the twentieth century. Analysis reveals that the notion of a single, composite field covering cataloguing, classification, indexing and the other IO activities, only became established in the late twentieth century, mirroring the broadening of the Library and Information Science curriculum toward that advocated by the "iSchool" movement. Prior to this, three phases of curriculum development are identified: the teaching of cataloguing and classification as distinct fields in the initial decades of Library Science education; these two activities then being taught as the combined field of "cat and class"; and, a growing coverage of other activities of "bibliographic control" from the 1960s onwards, such as those emphasizing the "subject approach" to IO. This last phase can be seen as a precursor to the establishment of IO as a generic field of study. The validity and prospects of the field are discussed in light of the historical account. composite field through the period can thus be gauged; the way the field is conceived will affect the design of the curriculum in which it is taught. As well as "information organization" and its variants, the terms, "knowledge organization", "bibliographic control" and "bibliographic organization", and their respective variants (both in word form and spelling), are considered. Second, the coverage, as well as the terminology, of key educational texts pertaining to the main component activities of IO, published across the last century, is examined. These works provide an indication of how different elements of IO featured in the curriculum: as textbooks and other teaching resources, they likely represent popular ways of thinking about these elements, and tend to cover what are considered, at least by the authors, as discrete "fields". Third, reports of surveys, and contemporary discussions, of curricula and syllabi of relevant programs offered since the late nineteenth century, are compared to the findings from the survey of educational texts. A summary of the etymological analysis is first presented to confirm the relative newness of the concept of the broad field as covered by Taylor's book. The story of how this conceptualization was arrived at is then related, chronologically, through the survey of educational texts and curricular commentaries. 2.1 Etymological Analysis A systematic search was conducted on the bibliographic databases, Library and Information Science Abstracts and Library (LISA) and Library, Information Science & Technology Abstracts (LISTA), the author's University Library's discovery tool, Primo, and OCLC WorldCat. All available content was searched, which, in the case of LISA, LIST...