This article addresses past and present bioarchaeological practices and human remains management in Quebec; it focuses on the challenges of creating a bioarchaeological database during a two-phase project initiated in 2018–2019 by the Kahnawake Mohawk Council. Its goal was to help Indigenous communities engaged in repatriation and rematriation procedures. Key information regarding human remains’ current location from the 2018 database served as the basis for a second phase in 2021. Of a total of 345 archaeological sites, storage location could only be confirmed for 35% of 228 Indigenous sites compared to 70% of 77 Euro-Canadian sites. Because Ancestors are the legal property of the finder, the landowner, or both, this missing information poses additional challenges to those wishing to initiate repatriation and rematriation claims. Years of non-Indigenous legal and scientific control created layers of colonial assessments. Current populations must rely on archaeological finds to assess whether they are Ancestors’ “legitimate next-of-kin.” In the meantime, Ancestors remain stored. We show how these problems stem from Quebec's colonial archaeological practices and legal frameworks. We then draw on reciprocity-based archaeology to suggest new ways of taking care of Ancestors that respect Indigenous communities’ beliefs and that involve Indigenous communities in caring for their Ancestors.