This presentation will showcase the preliminary results of an analysis of masters and doctoral theses produced by students from five departments, over a ten-year period, at Concordia University in Montreal, Canada. A list of 64 search terms targeting preprints and 78 different preprint servers was created. These terms were used to search the full-text and reference lists of 815 theses to identify citations to preprints. Rates of citation to preprints over time, across disciplines and between masters and doctoral theses will be discussed, as will challenges relating to data collection and analysis.