What role did American social and moral reformers play in managing human migrations? J.T. Jamieson, a Phd Candidate in UC Berkeley’s Department of History, examines how social reformers in the first half of the 19th century sought to control migration and insert their own understandings of morality, social benevolence, and humanitarianism into the lives and experiences of migrants. In so doing, he argues, their reforms frequently perpetuated racial supremacy, religious supremacy, and Christian expansionism. In other words, they sought to determine who belongs in America — and who doesn’t. Jamieson's dissertation, "A Mere Change of Location: Migration and Reform in America, 1787-1857," integrates the histories of religion, immigration, slavery, Indigenous dispossession, and Western expansion to argue that 19th-century social and moral reformers attempted to control the mass migrations of various peoples: African Americans, Indigenous peoples, European immigrants, and American settlers. A forthcoming journal article, “Home Work: Religious Nationalism and the American Home Missionary Society,” will appear in Early American Studies: An Interdisciplinary Journal in 2023. On this episode of the Matrix Podcast, Matrix Content Curator Julia Sizek spoke with Jamieson about his research. A transcript is available on the Matrix website at https://matrix.berkeley.edu.