Question: What outspoken abolitionist and author of "An Appeal to the Coloured Citizens of the World" was also the father of one of the first black men to pass the Massachusetts bar?
Sentence (from "David Walker (abolitionist)"): In 1829, while living in Boston, Massachusetts, he published "An Appeal to the Coloured Citizens of the World", a call for black unity and self-help in the fight against oppression and injustice.
Relevant evidence: Yes