While a growing body of literature documents the effectiveness of summer research programs in stimulating Black students' interest in graduate study, data are rarely disaggregated, resulting in a lack of knowledge of how subgroups of participants experience and benefit from program involvement. Moreover, given that Black students matriculating in doctoral programs are proportionately more likely to be female rather than male and to have earned a bachelor's degree from a Historically Black College or University (HBCU) rather than a Traditionally White Institution (TWI), it is important to explore the origins and pervasiveness of such disparities in pre-doctoral experiences. Thus, the present study investigates the extent to which Black undergraduate students' perceptions of a summer research program and subsequent interest in research careers and graduate study differ by gender and college of origin type. Findings indicate that Black males reported statistically significant higher ratings than females on three of the seven items assessed and students from HBCUs reported statistically significant higher ratings on one of the seven variables. Additionally, one interaction effect was identified for females from HBCUs. (Contains 1 footnote.)