The Black Plague didn't help improve the lives of anybody - it was such a horrible disease and spread so quickly throughout Europe that it decreased the population dramatically.
An abolitionist is the person who would be most likely to help an enslaved person escape.
Abolitionists wanted to end slavery, so obviously they would do anything in their power to aid those slaves in need. Overseers are supervisors, smugglers smuggle illegal goods, and traders are just merchants.
The main issue raised by the federal government's effort to end the Great Depression was the question about the role and size of the federal government.
Prior to FDR, the federal government had limited rights and responsibilities. The depression made the US government take away some powers from the States in an effort to nationally solve the crisis.
