Question: What is one important consequence of the "Great Migration" that Black families undertook in the 1910s and 1920s? Responses A large professional class of Black doctors and lawyers. A large professional class of Black doctors and lawyers. Decline of New South cities such as Atlanta. Decline of New South cities such as Atlanta. The introduction of sharecropping to the North. The introduction of sharecropping to the North. The Harlem Renaissance.