Professor Delgadillo delivered the Marian Miner Cook Athenaeum Lecture at Claremont McKenna College in California in October 2025. Professor Delgadillo’s lecture drew from her recent research in Geographies of Relation and extended this in new directions to consider the work of three twentieth and twenty-first century photographers dedicated to portraying African diaspora communities across the hemisphere. Her lecture, titled “Borderlands and Diasporas: Contemporary Photography’s Engagements with Race in the Americas,” was well received by Claremont McKenna students, faculty, and scholars gathered for a symposium on “The Future of Comparative Racializations.”