… GLC Brown Bag: Karin Zipf, “Field Ghosts:How the American Farmworker Fought Migrant Slavery, then Lost to H2A, … … GLC Brown Bag: Karin Zipf, “Field Ghosts:How the American Farmworker Fought Migrant Slavery, then Lost to H2A, … and RoundtablesSpouses and PartnersStaffStudentsTalks & Lectures Gilder Lehrman Center 203.432.9238 …