WOW! If you are teaching about the Great Migration, you need to check out this site! Created by NYC's Schomburg Center for Black Research in Culture, this site is incredibly thorough and comprehensive.
Refugee Settlers of Windsor, Ontario - from 'The African-American Migration Experience': NYPL Schomburg Center for Research in Black Culture. This Digital Resource includes primary sources and educational materials on the Transatlantic Slave Trade, the Underground Railroad, and the Great Migration and much more: http://www.inmotionaame.org/education/ #TeachNYPL