USA African Americans Biography Biografie Schwarze. USA Geschichte African American surgeons Biography Juvenile literature Blood banks United States Juvenile literature Drew, Charles <1904-1950> Juvenile literature Physicians Scientists Surgeons United States Biography Juvenile literature Abolitionists Abolitionists United States Biography Juvenile literature African American abolitionists Biography Juvenile literature African American civil rights workers Biography Juvenile literature African American surgeons - Biography - Juvenile literature African American women athletes Biography Juvenile literature African Americans Civil rights History 20th century Juvenile literature Antislavery movements Antislavery movements United States History 19th century Juvenile literature Black nationalism United States History 20th century Juvenile literature Blood banks - Juvenile literature Civil rights workers Civil rights workers United States Biography Juvenile literature Depressions 1929 Depressions 1929 United States Juvenile literature Douglass, Frederick 1818-1895 Douglass, Frederick <1818-1895> Juvenile literature Drew, Charles Richard <1904-1950> - Juvenile literature Frau