Reilly Clark is an art historian studying repatriation, restitution, and museum practice. Reilly earned his B.A. and M.A. in Art History at Stanford University, where he focused on modern and contemporary Indigenous art. In addition, Reilly studied repatriation issues at the University of Oxford. Reilly focuses on the return of looted, stolen, and contested cultural patrimony. He has had the privilege of returning cultural objects from private families to the Quapaw Nation, the Oglala Lakota Nation (Oglala Sioux Tribe), and the Cheyenne and Arapaho Tribes. He has had the privilege of working on many more institutional repatriation cases through the Santa Barbara Museum of Natural History under the purview of the Native American Graves Protection and Repatriation Act (NAGPRA). In 2025, Reilly earned the Christie’s Grant for Nazi-Era Provenance Research to study "twice-looted" cultural objects from the Global South in Occupied Paris. He also earned a Public Humanities Graduate Fellowship at the Interdisciplinary Humanities Center (IHC).